The change in volume when it is taken to depth is -0.053m³.
Given in the question,
Pressure at depth of 11 km = 1.13 × 10⁸ N/m²
The volume of seawater V = 1 m³
Pressure at the surface of seawater = 1.01 × 10⁵ N/m²
ΔP = 1.13×10⁸ - 1.01 × 10⁵ N/m²
Bulk modulus, B = -V dP/dV = -V(ΔP/ΔV)
B = -V (1.13 × 10⁸ - 1.01 × 10⁵)/ΔV N/m²
2.1 × 10⁹ N/m² = -1 (1.13 × 18⁸ - 1.01 × 10⁵) N/m² / ΔV
ΔV = (-1) (1.13 × 10⁸ - 1.01 × 10⁵)/2.1×10⁹ = -0.053m³
Therefore, the change in volume when it is taken to depth is -0.053m³.
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Complete question:
The deepest point in the ocean is in the Mariana Trench, about 11 km deep, about 1.13 × 10³ N/m². Calculate the change in volume of 1.00m² of seawater carried from the surface to this deepest point.
a slender, uniform metal rod of mass m and length l is pivoted without friction about an axis through its midpoint and perpendicular to the rod. a horizontal spring, assumed massless and with force constant k, is attached to the lower end of the rod, with the other end of the spring attached to a rigid support.
Moment of inertia of the metal rod, Ml2/12, has a halfway.
A perpendicular bisector is a line that forms a right angle at the junction of two adjacent line segments. So a perpendicular bisector always divides a line segment down the middle. Even or consistent division is implied by the word "bisect" itself.The perpendicular bisector of a triangle's side is a line that is perpendicular to that side and passes through the center of that side. The intersection of a triangle's three perpendicular bisectors is known as its circumcenter (the center of the circle through the three vertices). When a line segment divides another line segment at a straight angle, it is said to be a perpendicular bisector. At the midpoint, divide it into two equal parts.The spring is compressed by a very little amount when the rod is twisted at an angle. the torque moment about an axis caused by springs,
F= (l/2)kx
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Use the drop-down menus to complete the statements. When the 3.0 kg cylinder fell 500 m, the final temperature of the water was____°c and the change in temperature was____°c. when the 9.0 kg cylinder fell 500 m, the final temperature of the water was____°c and the change in temperature was_____°c.
T = 0.82 °C is the difference in water temperature caused by the first cylinder. The final water temperature, T₀, was 20.82 °C. The second cylinder's temperature change, T', was 2.45 °C. The final water temperature, T', was 23.27 °C.
The cylinder weighs m = 3.0 kg.
The cylinder dropped from a height of h = 500 meters.
M = 9 kg is the weight of the second cylinder.
The second cylinder dropped from a height of 500 meters, h'.
T = 20° C is the average water temperature.
The water's mass, m', is equal to 10 kg.
Consider that the kinetic energy is completely transformed into thermal energy upon contact with the water.
K.E = P.E
P.E = mgh
= 3 x 9.8 x 500
= 14700 J
The change in temperature,
ΔT = E ÷ m c
= 14700 ÷ (10 x 1800)
= 0.82° C
The first cylinder's contribution to the water's temperature change, ΔT = 0.82 ° C
the water's ultimate temperature,
T₀ = T + ΔT
= 20° C + 0.82° C
= 20.82° C
The final temperature of the water, T₀ = 20.82° C
The K.E of the second cylinder falling from height h to the surface of the water is,
P.E = Mgh'
= 9 x 9.8 x 500
= 44100 J
The change in temperature,
ΔT' = E' ÷ m c
= 44100 ÷ (10 x 1800)
= 2.45° C
The change in temperature due to the second cylinder, ΔT' = 2.45° C
The final temperature of the water,
T' = T + ΔT + ΔT'
= 20° C + 0.82 ° C + 2.45° C
= 23.27° C
Hence, the final temperature of the water, T' = 23.27° C.
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Answer:
1) 28.52
2) 3.52
3) 35.55
4) 10.55
calculate the rotational energy of a segment given mass of the segment 4.59 kg, moment of inertia 0.057 kg*m^2, and angular velocity 1.90 rad/s.
Rotational energy of a segment is 0.102 JT.
What is rotational kinetic energy?
Similar to linear kinetic energy, the moment of inertia and angular velocity can be used to express the kinetic energy of a rotating object. The translational kinetic energy of the center of mass and the rotational kinetic energy about the center of mass add up to the total kinetic energy of an extended object.
Using rotational kinetic energy
We know,
KE = [tex]\frac{1}{2}[/tex]Iω²
Where,
I = Moment of Inertia
ω = Angular Velocity
Putting values in the equation,
KE = [tex]\frac{1}{2}[/tex](0.057)(1.90)²
KE = 0.102 JT
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In a dental office, the person giving a dental x-ray examination leaves the room while the x-ray source is active. dental office workers do not, however, take similar precautions against the bright lights of the exam room. explain this difference.
The difference between a dental X-ray examination and the bright lights of the exam room lies in the type of radiation emitted. During a dental X-ray examination, the X-ray source emits ionizing radiation, which can be harmful if a person is exposed to it for too long.
This is why the person giving the X-ray examination will leave the room while the X-ray source is active. The bright lights of the exam room, on the other hand, emit non-ionizing radiation, which is not as harmful and can be safely exposed to without any special precautions.
The type of radiation emitted is an important factor when considering safety precautions. Ionizing radiation can be dangerous, so it is important to take the necessary steps to protect oneself from it. Non-ionizing radiation, on the other hand, is not as dangerous and can be safely exposed to without taking any special precautions. This is why the person giving the X-ray examination will leave the room while the X-ray source is active, but dental office workers do not take similar precautions against the bright lights of the exam room.
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When a spring is stretched by 2 cm its potential energy?
The spring constant is 50000 N/m.
The spring constant is a measure of the stiffness of a spring.
Springs with higher stiffness are more difficult to stretch.Under the action of external forces, the spring is deformed and returns to its original position when the force is removed.Spring constant is denoted by 'k' and has a SI unit as N/m.It has different values for different springs and different material.Electric potential energy of a spring can be calculated as P.E. = (1/2)*k*x²
where, k is the spring constant,
x is the displacement caused by the spring
The spring stores energy = 100 J
Displacement suffered by the spring = 2 cm = 0.02 m
P.E. = (1/2)*k*x²
k = (2*P.E.) / x²
k = (2 * 100) / (0.02)²
k = 200 / 0.0004
k = 50000 N/m
The spring constant for a spring having potential energy as 100 J is 50000 N/m.
The question is incomplete the complete question is "When a spring is stretched by 2 cm its potential energy is 100J? What is the spring constant".
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a hoop of mass 1.2 kg and radius 65 cm has a string wrapped around its circumference and lies flat on a horizontal frictionless table. the string is pulled with a constant force 7 n. how far does the center of the hoop travel in 4 s?
The middle of the hoop travels 46.4m in that time. A hoop with a radius of 65 cm and a mass of 1.2 kg is flatly resting on a frictionless table with a string wrapped around its circumference.
The body moves on the frictionless surface with constant velocity as represented by the term "frictionless surface acceleration." There is no net force that can stop an object from moving when the surface is frictionless. As a result, the body maintains its current speed. We translate "frictionless" as "moving without stopping" for this reason. A physical body's mass is its total amount of matter.
F = ma
F=1.2*a 7=1.2*a a =7/1.2 a = 5.8 m/s
2 s = ut+1/2at^
2\ss = 1/2(5.8)(16) (16)
s = 46.4m
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what is the maximum strength of the b field in an electromagnetic wave that has a maximum e-field strength of 1000 v/m
The maximum strength is 333.33 × 10⁻⁸ Vs/m².
What is an electromagnetic wave?
Electromagnetic waves, which include radio waves, visible light, and gamma rays, are made up of electric and magnetic fields and move through space or a material medium at the speed of light. Time-varying magnetic and electric fields are linked to one another at right angles and perpendicular to the direction of motion in such a wave. The strength and frequency v of the time fluctuation of the electric and magnetic fields define an electromagnetic wave.
We know,
B = [tex]\frac{E}{c}[/tex]
Where,
c = speed of light = 10⁸ m/s
B = [tex]\frac{1000 v/m}{3 X 10^{8}m/s }[/tex] = 333.33 × 10⁻⁸ Vs/m²
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a 1810 kg pile driver is used to drive a steel i-beam into the ground. the pile driver falls 2.04 m before contacting the beam, and it drives the beam 16.4 cm into the ground before coming to rest. find the magnitude of the average force the beam exerts on the pile driver while the pile driver is brought to rest. the acceleration of gravity is 9.8 m/s 2 . answer in units of n.
The magnitude of the average force the beam exerts on the pile driver while the pile driver is brought to rest is 17,738 N.
What is the average force the beam exerts on the pile driver?
The average force the beam exerts on the pile driver is determined by applying Newton's third law of motion.
Newton's third law of motion states that action and reaction forces are always equal and opposite.
Mathematically, Newton's third law of motion is given as;
Fa = Fb
where;
Fa is the force applied by object AFb is the reaction experienced by object BThe magnitude of the average force the beam exerts on the pile driver while the pile driver is brought to rest is equal to the weight of the driver acting downwards.
Downward force exerted by the driver = 1810 kg x 9.8 m/s² = 17,738 N
Upward force exerted on the driver by the beam = -17,738 N
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deltat The cosmic microwave background is almost perfectly uniform in all directions, except for very small deviations in its temperature. What do scientists think these small deviations represent? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answet a varying redshifts and blueshifts due to motions of gas in the early universe b regions of slightly higher helium abundance in the early universe, C The warmer spots represent regular matter and the cooler spots represent dark matter. d regions of slightly higher density that made it possible for galaxies to form
The minimal variation in cosmic microwave indicates that the temperature was rather constant.
These little anomalies correspond to areas with somewhat higher densities, which allowed galaxies to form. The cosmic microwave background (CMB, CMBR), also known as "relic radiation," is electromagnetic radiation that may be a holdover from an early stage of the cosmos according to Big Bang physics.
The weak cosmic heritage radiation that permeates the entire world is the cosmic microwave. It is by far the oldest electromagnetic radiation in the cosmos, dating to the era of recombination when the first atoms were created, making it a crucial source of information about the early universe. The distance between stars and galaxies (the heritage) is completely dark when using a traditional optical telescope (see Olbers' paradox).
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what is the density (in kg/m3) of a woman who floats in fresh water with 4.00 % of her volume above the surface?
The density of the woman is approximately 993 kg/m3.
Step 1: Calculate the volume of the woman above the surface. Assuming the woman has a height of 1.7 meters, and the average body density of a woman is 890 kg/m3, the volume above the surface is 0.04 x 1.7 m3 = 0.068 m3.
Step 2: Calculate the total mass of the woman. Multiply the volume (0.068 m3) by the density (890 kg/m3) for a total mass of 60.12 kg.
Step 3: Calculate the woman's density in the water. Divide the total mass (60.12 kg) by the volume (1.7 m3) to get a density of 35.33 kg/m3.
Therefore, the density of a woman who floats in fresh water with 4.00% of her volume above the surface is 35.33 kg/m3.
The density of an object is the mass of the object divided by its volume. The density of a substance is a measure of how much matter is packed into a given volume of that substance. The higher the density, the more matter is packed into the same amount of space. For example, a rock has a higher density than a pillow because the rock is made up of more matter than the pillow.
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Julia puts two magnetic toy trains very close to each other on a track. What will happen next, and why?
A. The trains will move closer to each other, because the magnetic force will pull the trains together
B. The trains move away from each other, because the magnetic force will push the trains apart.
C. The trains will move away from each other, because the magnets
are not touching.
D. The transfer not move because the magnets are not touching.
Answer:
i think the option C is correct
What is the only force acting on a freely falling object?
The force acting on freely falling object is force of gravity and air friction.
Assuming you mean the ground, in a more realistic model there are two forces acting on the object.At rest without acceleration, two forces also act on the body. It has a force produced by its mass being pulled toward the center of the earth, namely its weight, and a force acting in the opposite direction to its weight called the reaction force. This prevents objects on the ground from falling off the surface and acts perpendicular to the plane.There are two possibilities when items drop. Both his weight still exists. In the simpler model this doesn't seem to change, but if you want to be more precise the weight decreases with the square of the distance. The magnitude of the other force depends on the object's velocity. This is air resistance. Initially, the object's acceleration is greater than 0 because drag is less than its weight. As an object accelerates toward the center of the earth, its velocity increases and the force exerted by air resistance on the object's weight increases. Eventually the drag will equal the weight of the object and the acceleration will be zero. This is terminal speed. Maintain this speed until you reach the surface. This condition is very similar to the behavior of an object resting on the ground. An object's resistance and weight are equal and cancel each other out, so there is no net force.To learn about terminal speed-
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For what slit-width-to-wavelength ratio does the first minimum of a single-slit diffraction pattern appear at 30 ∘ ?
For a single-slit diffraction pattern observed at an angle of 30 ∘, the slit-width-to-wavelength ratio for the first minimum will be 1.41.
When a single-slit diffraction pattern is observed at 30 ∘, the Bratio for the first minimum will be 1.41.
This is determined by using the equation θ = sin−1(nλ/s),
where θ is the angle of observation, n is an integer (in this case, n=1), λ is the wavelength of the light wave, and s is the width of the slit.
If we plug in the given values of θ and n,
we get s/λ = 1.41.
Therefore, for a single-slit diffraction pattern observed at an angle of 30 ∘, the slit-width-to-wavelength ratio for the first minimum will be 1.41.
Diffraction is the spreading out of light or sound waves as they pass through a narrow opening. A single-slit diffraction pattern is a pattern of bright and dark fringes that appear when light passes through a single slit. The position of the first minimum of this pattern, which is the point at which the light intensity drops to its lowest, is determined by the slit-width-to-wavelength ratio.
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a bat at rest sends out ultrasonic sound waves at 50.0 khz and receives them returned from an object moving directly away from it at what is the received sound frequency?
The recieved sound frequency is 42.5 kHz.
What is frequency of sound?The way sound waves oscillate as they pass past our ears—alternating between compressing and expanding the medium, which is usually air—determines the sound frequency. All sound waves go through the same medium at the same pace. The Doppler Effect states that while a source or an observer is moving, the frequency of the sound wave varies. Echo is the term for a sound wave's reflection. It varies depending on the media.
Frequency of the sound due to reflection of an object moving away from the bat is given as
f = f' (v - v'/v + v')
v' = 27.5m/s
v = 340m/s
f' = 50KHz
Thus f = 50 (340- 27.5/340 + 27.5) = 42.5KHz
Hence the sound frequency received from the object is 42.5 kHz.
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Complete question is:
A bat at rest sends out ultrasonic sound waves at 50.0 kHz and receives them returned from an object moving directly away from it at 27.5 m/s. What is the received sound frequency?
plane a flies 600 km in 3 hours , plan B flies 500 km in 4 hours. how much faster is plane A than plane B?
Answer:
Below
Explanation:
Find unit rates ( km / hr) for each to compare
A : 600 km / 3 hr = 200 km/hr
B : 500 / 4 = 125 km hr
A flies 75 km/hr faster than B
a grocery sack can withstand a maximum of 235 n before it rips. will a bag holding 18.5 kg of groceries that is lifted from the checkout counter at an acceleration of 5.0 m/s2 hold?
A grocery sack can withstand a maximum of 235 n before it rips. will a bag holding 18.5 kg of groceries that is lifted from the checkout counter at an acceleration of 5.0 m/s2 hold is 51.98N
Threshold force is 235N
Force or weight = mg
Where m = mass of object and g is the acceleration due to gravity
Mass of object it holds = 18.5kg
g = 9.81m/s^2
a = 7m/s^2
Because a is acceleration against gravity
Minimum force applied to lift the bag = (18.5 × (-7)) kgms^2
= -129.5N
Force of gravity, i.e its weight
= (18.5 × 9.81)N
= 181.48N
Net force acting on the bag from above =
(181.48 + (-129.5)) N
= 51.98N
Hence, An acceleration of 5.0 m/s2 hold is 51.98N
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An apple falls from a tree. The gravitational force on the apple is 1 n. If air resistance is 0. 1 n, what is the net force on the apple?.
The net force on the apple is 0.9 N
There are two forces acting on an apple.
Gravitational force = 1 N downwards
Resistance force = 0.1 N rightwards
These two forces are acting at right angle to each other.
The net force on the force gauge is the net resultant force of the compression force and the resistance force that are being measured
Net force is also said to be the vector sum of the all forces acting on the object at a certain instance. Forces with same magnitude in opposite directions cancel each other.
The gravitational force will act downward and the air resistance will try to hinder the speed so the net force will be
Net force = 1 - 0.1 = 0.9 N
Therefore, the net force will be 0.9 N
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considers the variables of the attitude change approach—that is, features of the source of the persuasive message, contents of the message, and characteristics of the audience are used to determine when attitude change will occur. According to the elaboration likelihood model of persuasion, there are two main routes that play a role in delivering a persuasive message: central and peripheral.
According to the elaboration likelihood model of persuasion, there are two main routes that play a role in delivering a persuasive message: central and peripheral. This statement is true.
Two distinct persuasion pathways are used to process persuasive message. It occurs when interested parties pay attention to the arguments, analyze the data, and give a positive response.
According to the elaboration likelihood model of persuasion, there are two primary ways to convey a persuasive message:
Central routethe peripheral routeThe audience, or target, must be analytical and willing to analyze the data in order for the principal path of persuasion to be effective. The peripheral path to persuasion, which is a way for someone who is unable or unwilling to put out the effort to carefully consider the argument made in the message, to process a persuasive message, is unsuccessful.
Your question is incomplete but most probably your full question was
considers the variables of the attitude change approach—that is, features of the source of the persuasive message, contents of the message, and characteristics of the audience are used to determine when attitude change will occur. According to the elaboration likelihood model of persuasion, there are two main routes that play a role in delivering a persuasive message: central and peripheral.(true of false)
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you wish to reflect sunlight from a mirror onto some paper under a pile of wood in order to start a fire. which would be the best choice for the type of mirror?
A concave mirror concentrates light from a wide area of the mirror onto a tiny region of the paper, resulting in an extremely high power input to the paper.
A mirror with an inward curvature in the middle is referred to as concave. You might find it useful to keep this in mind if you believe that staring into a concave mirror makes you feel as though you are peering into a cave. The mirror equation is the formula that we apply to concave mirrors. This formula is used to calculate how close an object is to the mirror (image distance) and how big or small it is (object size.)
For concave mirrors, the law of reflection still holds true, but because of the curved surface, the incidence angle—also referred to as the angle at which the light strikes the surface—varies depending on where part of the mirror the light hits.
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for what slit-width-to-wavelength ratio does the first minimum of a single-slit diffraction pattern appear at 30 ∘ ?
The slit-width-to-wavelength ratio that the first minimum of a single-slit diffraction pattern appear at 30° is 1/2.
What slit-width-to-wavelength ratio does the first minimum of a single-slit diffraction pattern appear ?The distance between identical points (adjacent crests) in adjacent cycles of a waveform signal propagated in space or along a wire is defined as the wavelength. The distance between any given point in a wave and the same point in the next wave cycle. This can be from crest to crest, trough to trough, null to null, and so on.
It should be noted that for the first minimum, the value of m is equal to 1. That is m = 1.
Therefore, the slit ratio of the slit width to wavelength will be:
a / wavelength = 1 / sin
Since the angle is 30°, this will be:
a / wavelength = 1 / sin 30°
= 1 / 0.5
= 2
Therefore, the wavelength is 2.
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A motorcycle is travelling at a constant velocity of 30ms. the motor is in high gear and emits a hum of 700hz. the speed of sound in air is 340ms , and there is no wind.a. What is the period of the sound waves emitted from the motorcycle?b. What is the distance travelled by the motorcycle during one period of the sound oscillation?c. What is the distance travelled by a sound wave in air during one period of oscillation?
Based on the accurate information provided in the context of Constant Velocity and sound speed, we can calculate certain answers.
a. The frequency of the sound wave emitted by the motorcycle is 700 Hz, so the period is
$T=\frac{1}{700}=0.0014 s.b. The motorcycle is travelling at a constant velocity of 30 m/s and the period of the sound wave is 0.0014 s, so the distance travelled by the motorcycle during one period of the sound oscillation is
$d=v\cdot t=30\text{ m/s}\cdot 0.0014\text{ s}=0.042 m.c. The speed of sound in air is 340 m/s and the period of the sound wave is 0.0014 s, so the distance travelled by the sound wave in the air during one period of oscillation is
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a woman pushes a 50.0 kg crate across a floor by applying a horizontal force of 135.0 n. if the coefficient of kinetic friction is 0.24, calculate the magnitude of kinetic friction.
The magnitude of kinetic friction is 3.75.
What is kinetic friction?
The resistance to motion brought on by the contact of an item moving against a surface. When you push something ahead, friction forces it to move backwards because of the force of kinetic friction, which opposes the object's motion.
We know,
Frictional force, f = μN
N= force =mg
Given,
Sliding friction, μ = 0.25
Thus, f = 0.24 × 50 × 10 = 120N
Hence,
[tex]F_{net}[/tex] = [tex]F_{app}[/tex] - f
= 135-120 = 15N
Also we know,
f = μN
=0.25 × 15 = 3.75.
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a solenoid that is 85.0 cm long has a cross-sectional area of 17.0 cm2. there are 950 turns of wire carrying a current of 6.60 a. (a) calculate the energy density of the magnetic field inside the solenoid. (b) find the total energy stored in the magnetic field there (neglect end effects).
The magnetic field inside the solenoid has an energy density of 34.2 J/m3. A solenoid with a cross-sectional area of 17.0 cm2 and a length of 85.0 cm. A current of 6.60 is carried by 950 rounds of wire.
An electric charge, an electric current, and magnetic materials are all affected magnetically by a magnetic field, which is a vector field. A force perpendicular to the magnetic field and its own velocity acts on a moving charge in a magnetic field. A solenoid is a particular kind of electromagnet that produces a regulated magnetic field and is made of a helical coil of wire whose length is significantly higher than its diameter. When an electric current is sent through the coil, a consistent magnetic field can be created in a specific area of space.
u = B2Mo, u = (0.0092696)2/2*4*3.1416e-7, and u = 34.2J/m3.
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through what potential difference would the charged particles have to be accelerated to aquire the velocity of v0
Potential difference would the charged particles have to be accelerated to aquire the velocity of [tex]v[/tex] is [tex]{\frac{mv^{2} }{2q} }[/tex].
What is potential difference?The effort required to move a unit charge from one location to another in an electric field is known as the electrical potential difference. In other words, the electric potential difference between the two charged bodies is the definition of the potential difference.
The two bodies are said to have a potential difference when one of them is charged to a different electric potential than the other charged body. Both bodies are exerting maximum effort while under stress and tension.Volts are used to measure potential difference.
Since kinetic energy = [tex]\frac{mv^{2}} {2}[/tex]
Potential energy = qV
This kinetic energy is achieved by application of outside potential difference
Hence qV = [tex]\frac{mv^{2}} {2}[/tex]
Thus V = [tex]{\frac{mv^{2} }{2q} }[/tex]
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if the density of your unknown liquid is 0.65 g/ml, calculate the volume in liters that 3 ml of your unknown liquid would occupy when vaporized at the barometric pressure and temperature of your boiling water bath in run 1. use the accepted molar mass of your suspected unknown.
As a result, temperature is equal to 373 divided by 273 and has a density of 0.65 gram per mel (1.37). As a result, 3 ml of liquid will evaporate into 0.65 ml, or 3 into 3.
What is a concrete instance of evaporation?When a liquid transforms into a gas, evaporation takes place. When rain puddles "disappear" on a sunny day or when wet clothing dries in the sun, it is simple to envision. The liquid water in these instances is evaporating it in to a gas known as water vapor rather than actually dissipating. On a global level, evaporation occurs.
What happens when evaporation happens?Condensation is the transition of matter from its gaseous state into its liquid state. It is the opposite of evaporation, which is the vaporization of the a liquid from its surface into a gaseous state.
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water is moving at a speed of 1.95 m/s through a hose with an internal diameter of 1.6 cm. show answer no attempt 50% part (a) what is the flow rate in units of liters per second?
The flow rate of water moving at a speed of 1.95 m/s through a hose with an internal diameter of 1.6 cm is 0.39 L / s
Q = A v
Q = Flow rate
A = Area
v = Velocity
Since the outlet of water is through a hose,
A = π r²
A = π d² / 4
d = 1.6 cm = 0.016 m
A = ( 3.14 * 0.016² ) / 4
A = 0.0002 m²
The velocity of water is 1.95 m / s
Q = 1.95 * 0.0002
Q = 0.00039 m³ / s
Q = 0.00039 * 1000 L / s
Q = 0.39 L / s
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A carpenter tosses a shingle off a 9.4 m high roof, giving it an initial horizontal
velocity of 7.2 m/s.
a block of mass m is attached to a modified atwood machine and is accelerated upward at 3a by a constant force f0 . what is the weight of the block?
The weight of the block is Mg.
Upon the release of a tiny block with mass M from a,
A tiny block with mass m is launched from point A onto a fixed, smooth wedge. The block stops sliding at point C so because straight part of a floor is rough, which is marked as B at the bottom of the wedge.
When When an M-gram block is then,
An average kinetic potential energy contained in the wire when a block of mass M was suspended by the a coiled wire of length L is stress, strain, and volume. Justify its equality with Mgl, where l seems to be the extension. The mass earth system's Mgl loss of gravitational potential energy.
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a ball is thrown horizontally with a speed of 10 m/s off a 20-m tall cliff. how fast will it be moving when it hits the ground? answer in m/s.
A ball is hurled from a 20-m-tall cliff horizontally at a speed of 10 m/s. When it lands, it will be traveling at a speed of 22.3 m/s.
Velocity at equal height remains equal in magnitude and hence
v² =u²+2as
v² = 10²+2*10*20
v²=100+400
v²=500
v=√500
v=22.3 m/s
The speed of an object, sometimes known as "v" in daily speech and kinematics, is a scalar quantity that measures how much its position changes over time or how much it changes per unit of time. The distance traveled by an object during a time interval is equal to the duration of the interval divided by the object's speed, with the instantaneous speed being the upper limit of the average speed as the interval's duration becomes closer to zero. Velocity differs from speed.
Distance divided by time is the formula for measuring speed. A meter per second (m/s) is the metric unit of speed.
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The rationale underlying the use of projective personality tests, such as the Rorschach Test and the thematic apperception test, is that they
The idea behind projective personality tests, like the Rorschach Test and the thematic apperception test, is that they can reveal a subject's nature by evoking a response to ambiguous, hazy stimuli.
What justification exists for using projective tests?Projective tests are designed to reveal emotions, wants, and conflicts that are not readily apparent to conscious awareness. Psychoanalysts attempt to identify repressed emotions that may be the root of a person's issues in life by evaluating responses to ambiguous stimuli.
What serves as the projective test's primary purpose in psychology?A projective test, which is a type of personality test used in psychology, asks subjects to respond to ambiguous stimuli, with the hope of eliciting responses that disclose any hidden emotions or internal conflicts that the test subject may have projected onto the situation.
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