Maria determines that the wavelength of a legitimate wave is 2.50 meters and that the wave is travelling at 340 m/s the frequency is mu = 136hz.
SO, the frequency of the sound wave is 136hz.Sound waves fall into 3 categories: longitudinal waves, mechanical waves, and strain waves. Keep studying to discover what qualifies them as such. Longitudinal Sound Waves - A longitudinal wave is a wave wherein the movement of the medium's debris is parallel to the path of the strength.
Here We have:
lambda = 2.5mV = 340m / smu =?FORMULA:-V = mu*lambdaNOW,→ 340 = mu * 2.5→ mu = 340/2.5mu = 136hz .Read more about wavelength;
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you run to meet your friends for dinner, and you can run at a constant speed of 3.4 m/s. if the restaurant is 1000 m from your house, how long will it take you to get there?
Time taken to get to the resturant with constant speed of 3.4 m/s is 294.2 seconds.
How is time related to distance and speed?All the three are important concepts of motion and physics.
Speed = Distance/Time – Refers to how slow or fast an object moves. It describes the distance travelled divided by the time taken to cover the distance. Speed is directly Proportional to Distance and Inversely proportional to Time.
Distance is the length between two points.
We know that
speed,s = distance/ time
thus time,t = distance/speed
Here d = 1000m; s = 3.4m/s
Hence we can say that
t = 1000/3.4 = 294.2 sec
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What is the current in a 120V circuit if the resistance 100?
The current in the circuit of resistance is 1.2 A.
What is current?Current is the rate of flow of charge round an electric circuit.
To calculate the current flowing in the circuit, we use the formula below.
Formula:
I = V/R................ Equation 1Where:
I = CurrentV = Voltage R = ResistanceFrom the question,
Given:
V = 120 VR = 100 ohmsSubstitute these values into equation 1
I = 120/100I = 1.2 AHence, the current is 1.2 A.
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two bowling balls, a and b, each having a mass of 7.00 kilograms, are placed 3.00 meters apart. what is the magnitude of the gravitational force exerted by ball a on ball b?
The magnitude of the gravitational force exerted by ball A on ball B is equal to 36.31 × 10⁻¹¹ N.
What is gravitational force?Newton’s law of gravitation can be defined as every particle of matter in the universe attracting every other particle with mass with a certain force. The magnitude of gravitational force has a direct relationship with their masses.
Therefore, the gravitational force between two bodies can be written as:
[tex]\displaystyle F =G\frac{M_1M_2}{r^2}[/tex]
Where G denotes the universal gravitational constant.
Given, the mass of the Ball A = Ball B = 7 Kg
The separation between the two balls, r = 3 m
The magnitude of the gravitational force applied by ball A on ball B can be determined as:
[tex]\displaystyle F =6.67 \times 10^{-11} \times \frac{7\times 7}{(3)^2}[/tex]
F = 36.31 × 10⁻¹¹ N
Therefore, the gravitational force is equal to 36.31 × 10⁻¹¹ N.
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a girl stands on a scale in an elevator. under what conditions would the scale show her true weight?
If the elevator is stopped, the scale reads what you would expect it to read, your weight in an elevator. There elevator is in equilibrium.
If you are on an elevator (on Earth), your mass is constant. However, if the elevator is moving (and you're on a scale), you'll notice that your weight changes depending on where the elevator is moving. The only possible factor that can explain this change is the acceleration of the object - you
When the elevator is moving, we will weigh our normal weight. Since we are already moving at the same speed as the elevator (up or down), nothing is affecting us to change our weight. However, when the elevator starts to go or stops, our body resists it.
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What is the wavelength of radiation that has a frequency of 2.10 1014 s?
The wavelength of radiation is 1.428 x 10⁻⁶m.
The equation E=hf is called the Planck relation or Planck-Einstein relation. The letter h is named after Planck as Planck's constant. Energy (E) is related to this constant h and the frequency (f) of the electromagnetic wave.
In quantum wave theory, the Planck relation describes the shear wave energy emitted or absorbed as an electron transitions between energy levels within an atom. If the atom contains electrons, the destructive wave interference between the protons and electrons in the nucleus gives rise to destructive waves, resulting in binding energy. This binding energy is the energy of a photon emitted when an electron is captured or moves between states within an atom. Electron vibrations generate transverse waves, and photon energy is based on the frequency of that vibration.
c/y=v
c/v=y
3 x 10⁸/2.10 x 10¹⁴
1.428 x 10⁻⁶m
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a plane surface with an area of 3 cm2 is placed in a uniform magnetic field that is oriented at an angle of 30o to the surface. if the magnitude of the magnetic flux through the area is 0.9 mwb, what is the magnitude of the magnetic field
The magnetic field's magnitude is.
What exactly is magnetic flux?
Magnetic flux is a measurement of the intensity of a magnetic field as it passes through a certain surface. It is defined as the product of the surface area and the magnetic field component perpendicular to the surface. This may be stated mathematically as:
Φ = B * A * cosθ
Where is the magnetic flux, B is the magnetic field magnitude, A is the surface area, and is the angle formed by the magnetic field and the surface normal.
The International System of Units, i.e., the SI unit of magnetic flux, is commonly measured in webers (Wb). In a single-turn circuit, one weber is equal to the flux that creates an electromotive force of one volt.
Depending on the issue:
The magnetic flux across a surface is defined as the product of the surface area, the magnetic field component perpendicular to the surface, and the cosine of the angle between the magnetic field and the surface normal. This may be stated mathematically as follows:
Φ = B * A * cosθ
Where is the magnetic flux, B is the magnitude of the magnetic field, A is the surface area, and is the angle between the magnetic field and the surface normal.
In this situation, the surface area is 3 square cm, and the magnetic flux is 0.9 mwb. Use the following values to calculate the magnitude of the magnetic field:
As a result, the magnetic field magnitude is 0.34 mwb/cm^2.
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is the current through r1 greater than, less than, or equal to the current through r2 immediately after the switch is first closed?
The ratio of current in both of the given resistors is I1 - R2
I2 R1
Here we have been given that two resistors which are and respectively are connected in parallel with a cell. We have been asked to find the current that is flowing through the resistor to the current flowing through
The current in both the resistors will be different as we know that in parallel connection of the given resistors the current through each of them is different, but the voltage remains the same.
From ohm's law, we have,
V = IR
Where V is the potential difference between the respective ends of the resistors, I is the amount of current flowing in the circuit and the R is the resistance.
Then we have,
Current (I1) in the resistor is as follows:
I1 =V/R1
Current (I2) in the resistor is as follows;
I2 =V/R2
The ratio of the currents in both the resistors is as follows;
I1/I2=V/R1
V/R2
⇒ I1/I2=R2/R1
Therefore the ratio of current in both the resistors is ⇒ I1/I2=R2/R1
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the air around a pool and the water in the pool receive equal amounts of energy from the sun. why does the air experience a greater increase in temperature than does the water?
The air around a pool and the water in the pool absorb the same amount of energy from the sun; however, the water requires more energy to increase its temperature than the air does.
The Differences in Temperature Increase between Air and Water in Response to Solar EnergyWater has a higher specific heat capacity than air, meaning it requires more energy to increase its temperature by the same amount. This is because the molecules in water are more tightly bonded than those in air, so more energy is needed to break these bonds and increase the temperature.
Additionally, water has a higher latent heat of vaporization than air, meaning it requires more energy to evaporate and create steam. Therefore, the air experiences a greater increase in temperature than the water.
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How is muscular strength calculated?
Muscle strength is measured by estimating a person's one repetition maximum (1RM).
1RM is a measurement of the greatest load (in kilograms) that one can move means it can be lifted, pushed, or pulled once without failure or injury.
1RM is calculated by counting the maximum number of exercises that you can do in repetition by the use of a load that is just less than the maximum amount that can be moved. This number is known as the repetitions to fatigue (RTF) – you are required to stop counting the repetitions when you feel you can no longer do the exercise in a proper way or when you slow down or can't keep a steady pace.
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f io is the intensity of the light incident on the first polarizer, what is the intensity of the light that passes through the second polarizer whose axis is oriented at an angle of 90 degree
The second polarizer's axis is positioned at a 90-degree angle, and the light intensity that passes through it is 0.
The incident light is ordinary light. it is unpolarised
I₁=I₀/2 For the first polarized
I₂=I₁cos²θ (Second polarization)
=I₀/2 cos²90° (θ=90)
=I₀/2(0)²
=0
When an area is measured on a plane perpendicular to the direction of energy propagation, it is possible to define the intensity or flux of radiant energy as the power transferred per unit area. Watts per square meter (W/m2) and kg/s3 are the basic units for this system in the SI. The term "intensity" is most usually used to describe electromagnetic or acoustic waves, such as light or radio waves, where the average power transfer over the course of one wave period is taken into account. Any situation where energy is exchanged can be described as having intensity. The amount of kinetic energy that water drops from a garden sprinkler are carrying, for instance, might be calculated.
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What is the order of steps through which a particle of gaseous water (water vapor) would travel as it made one complete trip through the water cycle?.
The order of steps through which a particle of gaseous water travel is evaporation, Convection, precipitation and collection.
The gaseous particle of water also called water vapor will first evaporate and goes high into the clouds and follow the process of condensation, after condensation the water will fallback on the land in the form of rain this process is called raining.
When water goes into the high mountain ranges and then collects in water body, this process is called precipitation and collection respectively. Then again water which is in liquid form becomes what a vapour by following the process of convection.
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What is the difference expressed in kilograms between the mass of a proton and an electron.
The difference between the mass of a proton and an electron is 9.99 X 10⁻²⁸ Kg.
Mass of a proton = 1.67 X 10⁻²⁴ g
Mass of an electron = 9.1 X 10⁻²⁸ g
Converting Mass to Kilogram,
Conversion factor: 1kg = 1000 g
Mass of a proton = 1.67 X 10⁻²⁷ g
Mass of an electron = 9.1 X 10⁻³¹ g
Difference in their masses would be,
= Difference = Mass of proton - Mass of electron
= Difference = ( 1.67 X 10⁻²⁷ ) - ( 9.1 X 10⁻³¹ )
= Difference = 9.99 X 10⁻²⁸ Kg
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Kent Swimm (who is taking physics for the second year in a row, and not because he likes it) has
rowed his boat to within three feet of the dock. In an effort to save a little time, he decides that he
will simply jump off his boat onto the dock, turn around and then tie down his boat. Explain to
Kent why this would not be too wise an idea.
Answer:
The boat moves away from the dock, he won't be able to grab the line
Explanation:
When he jumps, he applies a force to the boat and the boat exerts a force equal in magnitude and opposite in direction to the force he applied. Because the friction is very low between the bottom of the boat and the water, the boat moves away from the dock. He won't be able to lean over and grab the line. This is Newton's 3rd Law of Motion.
if 10.0 kg of ice at 0 o c is added to 2.0 kg of steam at 100 o c, the temperature of the resulting mixture is
If 2.0 kg of steam at 100 o C and 10.0 kilogram of ice at 0 o C are combined, the resulting mixture will be hotter than 50 degrees. In its gaseous state, water is steam.
This might happen as a result of boiling or evaporation, where heat is provided until the water achieves the enthalpy of vaporization. Although wet steam, the visible mist or aerosol of water droplets created as water vapour condenses, is sometimes referred to as "steam," saturated or superheated steam is invisible. The concept of temperature is used to convey quantitatively how hot and cold something is. Using a thermometer, one can gauge temperature. Thermometers are calibrated using a variety of temperature scales, which historically drew on a variety of reference points and thermometric substances.
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a color television tube also generates some x rays when its electron beam strikes the screen. what is the shortest wavelength of these x rays, if a 30.0-kv potential is used to accelerate the electrons?
6.626 x [tex]10^{-11}[/tex] m is the shortest wavelength of these x rays.
Solution:
λ = h c/ΔE
λ = wave length
h = 6.626 x [tex]10^{-34}[/tex] m² kg /s = Planck constant
ΔE = 30 keV potential ( 1 keV = 1.6021 x [tex]10^{-16}[/tex] J)
c = velocity of light = 3 x 10⁸ m/s
Put these values in formula,
λ = (6.626 x [tex]10^{-34}[/tex] m² kg /s x 3 x 10⁸ m/s) / (30 x 1.6021x [tex]10^{-16}[/tex] J)
= 6.626 x [tex]10^{-11}[/tex] m
Hence, 6.626 x [tex]10^{-11}[/tex] m is the shortest wavelength of these x rays.
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justin, with a mass of 30 kg, is going down an 8.0-m-high water slide. he starts at rest, and his speed at the bottom is 11 m/s. how much thermal energy is created by friction during his descent?
537N thermal energy is created by friction during his descent.
The friction-related work is converted into thermal energy.
If Justin is initially at rest, MGH is his potential energy.
Thus, we have 30* 9.8*8 = 2352N.
Where,
Mass = m
Gravitational acceleration = g
Height = h
His potential energy is changed into usable kinetic energy when he reaches the bottom of the slide, leaving us with 1/2 mv^2.
Finally, we arrive to 1/2 * 30 * (11)^2 = 1815N
He had 2352N at the outset, and 1815N at the conclusion.
The thermal energy is therefore 2352 - 1815 = 537N.
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refer to the accompanying photos of an elliptical galaxy and a spiral galaxy to answer the following: which image (a or b) is an elliptical galaxy? which of these galaxies appears to contain more young, hot, massive stars? how did you determine your answer? when stars are born from a cloud of dust and gases, high- and low-mass stars form at about the same time. which group of stars, high-mass or lowmass, will die out first? over time, how will this affect the color of the light we observe coming from this group of stars?
Answer:
An elliptical galaxy is a type of galaxy in the Hubble sequence characterized by having a roughly ellipsoidal shape and hardly any distinctive features, lacking, for example, the spiral arms that characterize the homonymous galaxies. They are one of the four main classes of galaxies described by Edwin Hubble in his 1936 work The Realm of the Nebulae,1 along with spiral and lenticular galaxies. Elliptical galaxies (E) are, along with lenticular galaxies (S0) with their large-scale disks, and ES234 galaxies with their intermediate-scale disks, a subset of the "early-type" galaxy population. ".
Most elliptical galaxies are composed of older, low-mass stars, with a sparse interstellar medium and minimal star formation activity, and tend to be surrounded by large numbers of globular clusters. Elliptical galaxies are thought to make up about 10-15% of the galaxies in the Virgo Supercluster, and are not the dominant galaxy type in the universe as a whole.5 They are found preferentially near the centers of galaxy clusters .6
Elliptical galaxies range in size from dwarf ellipticals with tens of millions of stars, to supergiants with over a hundred trillion stars dominating their galaxy clusters. Originally, Edwin Hubble hypothesized that elliptical galaxies evolved into spiral galaxies, which was later found to be false,7 although the accumulation of gas and smaller galaxies can form a disk around a pre-existing ellipsoidal structure.8 9 The stars found within elliptical galaxies are, on average, much older than the stars found in spiral galaxies.7
Explanation:
what property of light is responsible for the different colors we observe? different colors have different frequencies. the size of the photon determines the color. varying levels of intensity result in different colors. the speed of a light wave determines its color.
Wavelength is the property of light is responsible for the different colors.
The length that a periodic wave travels across in order to replicate its shape is known as its wavelength. It is the distance between two successive corresponding wave points of the same phase, such as two neighboring crests, troughs, or zero crossings, and it is a feature of both traveling waves and standing waves, as well as other spatial wave patterns. The spatial frequency is defined as the wavelength's inverse.. Additionally, sinusoidal wave envelopes, modulated waves, and waves created by the interference of several sinusoids are also commonly referred to as having a wavelength.
Wavelength. and frequency are inversely. related, assuming a sinusoidal. wave traveling at a constant. speed
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a boat, whose speed in still water is 8.0 m/s, is directed across a river with a current of 6.0 m/s. what is the speed of the boat as it crosses the river?
The boat is moving at a speed of 2.0 m/s when crossing the river.
Step 1: Determine the boat's velocity in relation to the river by deducting the river's current from the boat's speed in still water.
Boat speed in relation to the river is equal to 8.0 m/s minus 6.0 m/s, or 2.0 m/s.
In Step 2, multiply the boat's angular velocity to the stream by both the lake's current to determine how fast the sailboat will be traveling across the water.
Boat's river crossing speed is calculated as 2.0 m/s plus 6.0 m/s, which equals 8.0 m/s.
Because of this, the boat is moving at 8.0 m/s as it crosses the river.
An object's mass and the force being exerted towards it both affect how quickly it moves. The speed of an object's movement increases with increasing force. It will travel more slowly the more mass an object has. This is so that the item can be accelerated by the pressure towards the extent that the mass permits.
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concept simulation 25.3 reviews the concepts that are important in this question. plane mirrors and convex mirrors form virtual images. with a plane mirror, the image may be infinitely far behind the mirror, depending on where the object is located in front of the mirror. for an object in front of a single convex mirror, what is the greatest distance behind the mirror at which the image can found? (image distances behind the mirror are negative.)
With a plane mirror, the distance of the image behind the mirror is infinitely far. The greatest distance behind the mirror at which the image can be found is infinite.
What is the distance of the image formed behind the plane mirror?For plane mirrors, the object distance is equal to the image distance and hence, the image is the same distance behind the mirror as the object is in front of the mirror.
The image distance from mirror does not depend on the distance of the observer from mirror. Therefore, if we change the object's distance then only the image distance or distance between object and image will be affected.
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During a classroom lab activity, students built each of the circuits shown below and measured the current and resistance in each circuit. Each circuit contains a 1. 5-volt battery and each bulb has a resistance of 50 Ω.
When the switch is closed, in which circuit would resistance be the highest and current be lowest?
When the switch is closed, in the third circuit the resistance would be the highest and the current be the lowest.
From the question, we have
Voltage in the circuit, V = 1.5 volts,
The circuit's resistance, R = 50,
In the third diagram, the bulb is connected in parallel, which means that the voltage in the circuit will remain constant. Additionally, because the current depends on the resistor, the resistance in this circuit will be larger.
Additionally, according to Ohm's law, a high resistance will result in a low current flow.
Since there is only one bulb in the first circuit, resistance will be minimal and current flow will be high.
As a result, the third circuit's resistance would be the highest and its current the lowest when the switch is closed.
Current :
The phrase "electric current" is frequently used to describe how much electricity flows through a circuit and how it flows in an electronic circuit. Amperes are used to measure it (A). As more electricity passes through the circuit, the ampere value increases.
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When the switch is closed, in the third circuit the resistance would be the highest and the current be the lowest.
What is current?
When describing how much electricity flows through a circuit and how it flows in an electronic circuit, the term "electric current" is often employed. It is measured in amperes (A). The ampere number rises as more electricity flows through the circuit.
Given:
The Voltage in the circuit, V = 1.5 volts,
The resistance in the circuit, R = 50 Ω,
As you can see in the third diagram, there is a parallel connection of the bulb, so the voltage in the circuit will remain the same and the current depends on the resistor, so there will be higher resistance in this circuit.
And if the resistance is high the current flow will be low, (By Ohm's law)
In the first circuit, there is only one bulb, so resistance will be low, and the current flow will be high.
Therefore, when the switch is closed, in the third circuit the resistance would be the highest and the current be the lowest.
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it is estimated that there are a trillion comets in the oort cloud. if it extends out to about 50,000 au from the sun, what is the total volume of the oort cloud in cubic au? (for this calculation assume that the oort cloud is spherical in shape)
The volume of the oort cloud that is in the shape of sphere is 5.2 * 10¹⁴ au³.
We know the volume of sphere as V = 4/3 * (πr³)
where, V is the volume
r is the radius of the sphere
Given that, radius of oort cloud is r = 50000 au
The volume of the oort cloud can be calculated as follows.
V = 4/3 * (πr³)
π is substituted as 22/7
V = 4/3 * 22/7 * 50000³
⇒ 88/21 * 125 * (10⁴)³
⇒ 523.8* 10¹²
⇒ 5.238 * 10¹⁴
Hence, the volume of the oort cloud that is in the shape of sphere is 5.2 * 10¹⁴ au³.
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how does the difference between the ranges of the strong nuclear force and the coulomb force affect the makeup of each atom’s nucleus?
The strong force, which is thought to hold atoms' nuclei together and is even stronger than the Coulomb force at close ranges, was postulated by physicists as a result of Coulomb's law inside the nuclei of atoms.
The strong nuclear force's extremely limited range is what makes it so challenging to produce nuclear fusion on Earth.According to Coulomb's law, the square of the distance between two charges has an inverse relationship with the electrical force of attraction or repulsion between them.Charles-Augustin de Coulomb, a French physicist, first described this force as the Coulomb force in 1785. Because of this, the law was called in his honor and served as the foundation for electrostatics.To know more about Coulomb force
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what is the net torque on the wheel due to these three forces for an axis perpendicular to the wheel and passing through its center? let counterclockwise torques be positive.
The magnitude of the net torque on the wheel due to these three forces for an axis perpendicular to the wheel and passing through its center is
¹/₂MR³a.
What would be the Net torque on the wheel?The net torque on the wheel is determined from the moment of inertia of the pulley and the angular acceleration.
∑τ = Iα
where;
I is moment of inertia α is angular accelerationthe moment of inertia of the axis perpendicular to the wheel and passing through its center is calculated as;
I = ¹/₂MR²τ = ¹/₂MR²ατ = ¹/₂MR²(aR)τ = ¹/₂MR³awhere;
a is the acceleration due to the applied force.
Thus, the magnitude of the net torque on the wheel due to these three forces for an axis perpendicular to the wheel and passing through its center is ¹/₂MR³a.
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if a dipole, starting from rest and initially pointing opposite to an external magnetic field, is slightly perturbed, it will rotate in order to point in the same direction of the external magnetic field (its lowest potential energy state), with its potential energy changing to kinetic energy (just like a ball given a slight push at the top of a hill rolling into a valley). considering this energy conversion, what is the angular speed of the dipole moment as it passes through its lowest potential energy state (when it points in the same direction as the external magnetic field)?
When the angle between the dipole moment and electric field is 0°, the lowest amount of potential energy is present in an electric dipole.
What is the formula for magnetic dipole moments?Technically referred to as a magnetic dipole, a tiny current loop functions as a tiny magnet. The formula m = NIA, which results in the units - Ampere meter square, determines the power of that tiny magnet, the magnetic dipole moment m.
What is the relationship between an electron's rotating magnetic moment and angular momentum?The electron's orbital angular momentum forms a 180° angle with the orbital magnetic moment's direction. Explanation: Given is the equation for the relationship between an electron's rotational momentum and its magnetic moment: = - e m e L e 2 m e L, where e and me are the electron's mass and charges.
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The hydraulic lift in a car repair shop has an output diameter of 40 cm and is to lift cars up to 1800 kg. Determine the fluid gage pressure that must be maintained in the reservoir.
The fluid gage pressure of [tex]1.39 * 10^{5} Pa[/tex] must be maintained in the reservoir.
It is given to us that -
The hydraulic lift has an output diameter = 40 cm = 0.40 m
It can lift cars up to 1800 kg
We have to determine the fluid gage pressure that must be maintained in the reservoir.
We know that, the formula of pressure is given as -
[tex]P = \frac{F}{A}[/tex] ---- (1)
where,
F = normal force
A = Area
We can see that there is a normal force created as a result of the weight of the cars. So, we can find out the normal force by -
[tex]F = mg[/tex] ---- (2)
where,
m = mass
g = acceleration due to gravity
Substituting the values in equation (2), we have -
[tex]F = mg\\= > F = 1800 * 9.8\\= > F = 17640 N[/tex] ------ (3)
Now, the area of the lift with an output diameter of 40 cm can be calculated as -
[tex]A = \pi (\frac{d}{2} )^{2}[/tex] ----- (3)
where,
d = diameter
Substituting the given diameter value in equation (3), we have -
[tex]A = \pi (\frac{d}{2} )^{2}\\= > A= \pi (\frac{0.40}{2} )^{2} \\= > A = \pi (0.20)^{2} \\= > A = 0.1267 m^{2}[/tex] ----- (4)
Substituting the value of force, F from equation (3) and area, A from equation (4) in equation (1), we have -
[tex]P = \frac{F}{A}\\= > P \frac{17640}{0.1267} \\= > P = 1.39 * 10^{5} Pa[/tex]
Therefore, the fluid gage pressure of [tex]1.39 * 10^{5} Pa[/tex] must be maintained in the reservoir.
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If you drop a ball from 3.1 m, what is its speed as it hits the ground?
Answer:
Zero I think I'm not sure
a tuning fork oscillates at a frequency of 512 hz. if sound is traveling at 345 m/s, how many wave peaks will reach the eardrum of a person sitting near that fork in 2 seconds?
The wave peaks will reach the eardrum of a person sitting near that fork in 2 seconds is about 225
How to calculate how many peaks will reach the eardrum of a person sitting near that fork in 2 seconds?
The crest is the highest point on the wave. The trough is the area that is the lowest. The wave length, also known as the wavelength, is the separation between two successive crests (or troughs), whereas the wave height is the overall vertical change in height between the crest and the trough.
in Wales, Snowdon (1085m) England's Scafell Pike (978m) Scotland's Ben Nevis (1345m)
The wave peaks will reach the eardrum of a person sitting near that fork in 2 seconds is about 225
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The two-neuron chain allows increased communication and control of the effector organ. True/False?
The two-neuron chain allows increased communication and control of the effector organ is true.
What are the two neurons that form the route from the CNS to the effector?Preganglionic and postganglionic neurons make up the link in the ANS between the CNS and its effector. Outside of the central nervous system, in an autonomic ganglion, is where these two neurons synapse.
The two-neuromuscular chain enables improved communication and regulates the effector organ. The sympathetic division is where the cell bodies of preganglionic neurons are found.
The brainstem or spinal cord of the central nervous system houses the preganglionic neurons' cell bodies (CNS).
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the hubble constant is about 70 km/s/mpc. you measure the redshift of four galaxies. the first has a redshift of 1500 km/s, the second has a redshift of 750 km/s, the third has a redshift of 5000 km/s and the fourth has a redshift of 2000 km/s. which galaxy is the closest?
The hubble constant is about 70 km/s/mpc. you measure the redshift of four galaxies. the first has a redshift of 1500 km/s, the second has a redshift of 750 km/s, the third has a redshift of 5000 km/s and the fourth has a redshift of 2000 km/s. Andromeda is the closest galaxy.
A galaxy is made up of gravitationally bound clusters of stars, stellar debris, interstellar gas, dust, and dark matter. The word "galaxias" is a Greek word that means "milky" and alludes to the Milky Way galaxy, which is where the Solar System is located. Hubble constant, galaxies range in size from dwarfs, which have less than 100 million stars, to supergiants, which have more than 100 trillion stars. All of these stars orbit the galaxy's center of mass. Galaxies have an average of 100 million stars. Stars and nebulae make up a very small portion of the material of a typical galaxy; dark matter makes up the majority of the galaxy's mass. Typically, galaxy cores contain supermassive black holes. Galaxies can be characterized as elliptical, spiral, or irregular based on their visual shape. [6] Many of them are thought to have supermassive black holes in their cores. The main black hole of the Milky Way.
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