If you drive west at 40 mph for 25 hours how far would you travel?
Answer:
1000
Explanation:
25x40=1000
Answer:
If you drive west at 40 miles per hour for 25 hours, you would travel 1000 miles.
Explanation:
This is determined by multiplying the speed you are traveling (40 miles per hour) by the amount of time you are traveling (25 hours), which gives you 1000 miles. It's important to note that this is only an estimate, as various factors such as traffic and road conditions can affect your actual travel distance. Additionally, driving for extended periods of time can be dangerous, so it's important to take regular breaks and make sure you're well rested before getting behind the wheel.
What force is required to stop a 1100- kg car in a distance of 0.20 m if it is initially moving at 2.2 m/s ?
The force required to stop a car of 1100 kg which is moving at a speed of 2.2 m/s is 13310 N.
What is Force?A force in physics is an input that has the power to change an object's motion. A mass-containing object's velocity can vary, or accelerate, as a result of a force.
Intuitively, a push or a pull can also be used to describe forces. Being such a vector quantity, a force does have magnitude and direction. The SI unit metric newton is used to measure it (N). The letter F stands for force.
As per the given information in the question,
Mass of the car, m = 1100 kg
Distance, s = 0.20 m
Final velocity, v = 2.2 m/s.
Use the equation of motion,
v² - u² = 2as
2.2² - 0² = 2a (0.20)
4.84 = 0.4a
a = 12.2 m/s²
F = ma
F = 1100 × 12.2
F = 13310 N
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Consider the four quantum numbers of an electron in a single-electron atom, n, l, ml , and ms . The energy of an electron in an isolated atom depends on Consider the four quantum numbers of an electron in a single-electron atom, n, l, ml , and ms . The energy of an electron in an isolated atom depends on
l, ml , and ms only.
n only.
n and l only.
n, l, and ml only.
all four quantum numbers.
According to the Quantum numbers, The energy of an electron in an isolated atom depends on b. n only.
What is a Quantum number?
Only specific integral or half-integral values can be assigned to the number that appears in the theoretical formulation for the value of a particular quantized feature of a subatomic particle, atom, or molecule.
The proportional total energy of each orbital is represented by the quantum number n, also referred to as the primary quantum number.
In an isolated atom, each electron in a subshell has exactly the same amount of energy. Electron shells are groups of orbitals with the same n value.
The Schrödinger wave equation's solution yields the primary quantum number, which describes the energy in eigenstates. In the instance of a hydrogen atom, this yields:
En= -(13.6/n^2)eV
Thus for each value of n, we can describe the orbital and the energy corresponding to each electron on such orbital.
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Is the force applied by the string cable of accelerating the box up the incline?
Is the force applied by the string cable of accelerating the box up the incline. The molecular weight of water is 18 g/mol and the latent heat of vaporization is 2260 J/g.
What is the parameters?Let's state the parameters given.
Given that:
mass (m) = 117 gram
specific latent heat of vaporization (L) = 2260 J/g
Pressure (P) = 1 atm or 101325 Pa
Temperature (T) = 373.15 K
molecular weight = 18 g/mol
i.e we are to find the heat energy which is denoted by Q = mL
Q = 117g × 2260 J/g
= 264420 J
= 264.42 KJ
and the water vapor takes up some final volume
If we assume that the vapor is an ideal gas.
We can represent the parameters using the equation of an ideal gas:
PV=nRT
where;
P = 1 atm or 101325 Pa
n = no of moles of the water
n = mass/molecular weight
= 117/18
= 6.5 mole
R = 8.314
T = 373.15
= 0.199 m³
At Constant Pressure, the work done by the vapour in pushing on the piston can be calculated as:
W =(ΔV)
= 101.325 × (0.199 - 0)
= 101.325 × 0.199
= 20.16KJ
Let ΔU = water internal energy change
Q = Heat Energy
W = work done by the vapour in pushing on the piston
Q = ΔU + W
ΔU = - Q + W (by multiplying the left hand side with minus (-))
ΔU = Q - W
ΔU = 264.42 - 20.16
ΔU = 244.26KJ
Therefore, Is the force applied by the string cable of accelerating the box up the incline. The molecular weight of water is 18 g/mol and the latent heat of vaporization is 2260 J/g.
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The moment of inertia of the flat square is MA²/6
What is moment of inertia?The moment of inertia of a body is a property of the body which shows its ability to ritate about an axis.
What is the moment of inertia of the flat square?To find the moment of inertia of the flat square through its center of mass, we know that the moment of inertia of a rectangular slab is given by
I = M(a² + b²)/12 where
M = mass of slab and a and b = side lengthsNow, for a flat square a = b. so,its moment of inertia is I = M(a² + b²)/12
I = M(a² + a²)/12
= 2Ma²/12
= Ma²/6
Now for the given flat square, we have that
its mass equals M and its length equals A.So, substituting these into the equation of moment of inertia for the flat square, we have that
The moment of inertia of the flat square is given by
I = Ma²/6
I = MA²/6
So, moment of inertia is MA²/6
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when you drop an object from a height, does the energy transferred to its kinetic energy stores increase or decrease as it falls?
Answer:
increase
Explanation:
The potential energy of the object at a certain height converts to kinetic energy as the object falls. Objects in free fall are accelerating, so the velocity is increasing every second that the object is falling. KE = 1/2mv², so the greater the v, the greater the KE.
An object falls from aight of 12.6 m. How long does it take to fall and hit the ground below!
Answer:
1.60 s
Explanation:
t² = (2h)/g
t = √(2h)/g
t = [tex]\sqrt{2(12.6m)/9.80 m/s2}[/tex]
t = 1.60 s
A car moving at a speed of 23 m/s travels around a curve with a circular curvature 42.1 m in diameter. Determine the acceleration (in m/s/s) of the car
The acceleration of the car moving with a velocity of 23 m/s is 25.13 m/s².
What is acceleration?Acceleration is the rate of change of velocity.
To calculate the acceleration of the car, we use the formula below.
Formula:
a = v²/r..................Equation 1Where:
a = Acceleration of the carv = Velocity of the carr = Radius of the curveFrom the question,
Given:
v = 23 m/sr = 42.1 m = 21.05 mSubstitute these values into equation 1
a = (23²)/21.05a = 25.13 m/s²Hence, the acceleration of the car is 25.13 m/s².
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The figures below show one or more metal wires sliding on fixed metal rails in a magnetic field. For each, determine if the induced current flows clockwise, flows counterclockwise, or is zero. Show your answer by drawing it. a. • • b. x x x x d. . x x x x тx
As per lenz's law, a current induced in such a way that it opposes the change in flux through loop.
What are metal wires?
A wire is a flexible strand of metal. The wire is commonly formed by drawing the metal through a hole in a die or draw plate. Wire gauges come in various standard sizes, as expressed in terms of gauge number. Wires are used to bear mechanical loads, often in the form of wire rope.
As per lenz's law, a current induced in such a way that it opposes the change in flux through loop.
Following are the directions of flow of current for each diagram -
a) Clock -wise
b) counter - clockwise
c) No flux change so, Induced Current = 0
d) counter - clock wise
e) clockwise
f) No current
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Complete Question is in the adjoining image -
The graph shows a car’s velocity over time, What is the car’s acceleration between 6 and 7 seconds
Based on the given graph of the car’s velocity over time, the car’s acceleration between 6 and 7 seconds is 0 m/s².
What is the acceleration of a body?The acceleration of a body is defined as the rate of change of velocity of a body with time.
Mathematically, the acceleration of a body is given below as follows:
Acceleration = change in velocity / change time
The change in the velocity of a body is given as follows:
Change in the velocity = Final velocity - initial velocity
A velocity-time graph is a graph that plots the velocity of a body against the time taken by the body to move. The slope of a velocity-time graph gives the acceleration of the body.
The acceleration of the car is calculated from the given velocity-time graph as follows:
Acceleration = (60 - 50) m/s / (7 - 6) s
Acceleration = 10 m/s²
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Which physical adaptation increases an organism's chances of finding a mate?
O the wax-producing glands of bees
O the venom resistance of clown fish
Othe quills of a porcupine
O the mimicry of wasp beetles
Physical adaptation increases an organism's chances of finding a mate such as the quills of a porcupine. Thus, the correct option is C.
What is Physical adaptation?
An adaptation is defined as a physical, physiological, or behavioral feature of an animal that helps them to survive better in their environment in which they are living. An adaptation is some change on their body or something they do or behavior with their bodies that help them to find food, water, mates, and shelter which helps in increasing their chances of survival and produce offspring.
The quills of a porcupine is an example of physical adaptation which increases an organism's chances of finding a mate.
Therefore, the correct option is C.
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During the investigation of a house fire, you notice the V-shaped smoke pattern that points to the downstairs living room just left of the front door. There, you find a number of ash trays near an old lounge chair. You also find the wood frame alligator skin, exhibit A in the kitchen above the baking cabinet that stores oil and lard, and wood frame alligator skin, exhibit B, in the living room.
Explain where the fire likely started and how you know,
what the alligator skin evidence tells you, and
what the explanation might be for the seemingly conflicting evidence.
Would you suspect arson or other causes? Why?
Answer: During the investigation of a house We notice the v shaped smoke pattern that points to the downstairs living room just left of the front door.
What is Fire?
--fire is a type of oxidation, which is the combination of oxygen with other substances to produce new substances.
--To start fire, the minimum temperature needed to spontaneously ignite fuel, known as ignition temperature, must be reached.
likely be the lowest point showing the most intense characteristics of burning.
Fire Clues:
Point of Origin -Burn patterns and other damage can help determine the point of origin, or the location where the fire started.
Char Patterns -
Created by very hot fires that burn very quickly and move fast along its path, so that there can be sharp lines between what is burned and what isn't.
A char pattern on a door would help an investigator determine which side of the door the fire was on.
A char pattern on the floor would help investigators determine the use of an accelerant and its path.
V-Patterns -
Fire burns up, in a V-shaped pattern, so a fire that starts at an outlet against a wall leaves a char pattern that points to the origin.
A very narrow V-shape might indicate a fire that was hotter than normal, such as one helped along by an accelerant.
A wide V-shape might indicate a fire that was slow burning.
A U-shape could indicate that there was a "pool of origin" rather than a point of origin.
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the mass of fuel in an airplane must be determined before takeoff. a jet contains 13821 l of fuel after it has been filled with fuel.
The mass of fuel in an airplane must be determined before takeoff is 15.5 * 10³ kg.
What is mass?
Inertia, a fundamental characteristic of all matter, is measured quantitatively. . The change caused by an applied force is proportional to the mass of the body.
What is fuel?
Any substance that can be manufactured to react with other compounds in order to release energy as thermal energy or for use in work is a fuel.
Volume of fuel = 19917 litre
since 1 litre = 1000cm³
so, 1991700 cm³
density of fuel = 0.778g/cm³
density = mass/volume
mass= density* volume
= 0.778g/cm³* 1991700 cm³
= 15495426g
= 15495426g/ 1000 *1000 g
= 15495426g/ 1000 kg
= 15495. 426 kg
= 15495. 426 *10³ kg
= 15.5 * 10³ kg.
Therefore, the mass of fuel in an airplane must be determined before takeoff is 15.5 * 10³ kg.
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a radio antenna broadcasts a 1.0 mhz radio wave with 25 kw of power. assume that the radiation is emitted uniformly in all directions.
The intensity of the waves from the antena was found to be 2.0x10^-6 w/m^2
defiine antena ?
A metallic structure that collects and/or transmits radio electromagnetic waves is known as an antenna. Antennas come in different forms and sizes, from little ones for watching TV on your roof to massive ones that catch signals from satellites millions of kilometres away.
Space Communications and Navigation (SCaN) employs parabolic antennas, which are unique bowl-shaped antennas that concentrate signals at a single point. The antennas' bowl shape allows them to capture and transmit electromagnetic radiation. In order to catch and transmit the signal, these antennas move horizontally (measured in hour angle/declination) and vertically (measured in azimuth/elevation).
SCaN contains more than 65 antennas that assist gather and send data to and from space satellites.
I=P/4πr^2
i=25000/4π(30000)^2
≈2.0x10^-6 w/m^2
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What happens to the salt crystals in the bottom of the tank
B. More of the salt dissolves because the additional water can hold more salt ions
refractive index of a material relation with temperature, wavelength of the incident light and optical density
Absolute Refractive Index = Speed of light in vacuum / speed of light in medium.
Absolute refractive index is the ratio of the speed of light in a vacuum to the speed of light in a given material. It is an important physical property of a material, and is used to calculate the refractive index of a medium relative to a vacuum.
As the temperature rises, the speed of light increases because the optical density of the light is decreasing. The refractive index varies simultaneously for incident light of different wavelengths.
Refractive index can be written as n = λv / λm , where λv is the wavelength in vacuum and λm is the wavelength of the medium.
The density and temperature of a material affect its absolute refractive index. The wavelength of the incident light also plays a role.
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If the average hang time of a professional football kick is 4.4s, then determine the average maximum height.
The average highest height of a professional football kick is 189.728 m if the hang time is 4.4 seconds on average.
What is meant by hang time?A person or an object's total duration in the air after leaving the ground is known as their "hang time." From the time anything leaves the ground until it returns, it is measured.
We know,
y= gt²
Here,
y = Average maximum height
g = acceleration due to gravity
t = Average hang time
Given,
Average hang time (t) = 4.4s
Acceleration due to gravity (g) = 9.8 m/s² (assuming)
Inserting these values in the given equation,
y = gt²
= 9.8×4.4×4.4
= 189.728 m.
Hence, the average maximum height of the football is 189.728 m.
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the grounding electrode(s) is connected to the equipment ground conductor at the service or separately derived system with the
It is utilized to link the grounded conductor of the derived system to the grounding electrode as outlined in 250.30(A) (4).
What is ground conductor ?
One who intentionally connects a wire or conductor to the earth is said to be a grounding conductor. The term "ground conductor" or "case ground" are terms used to describe the grounding conductor. The ground wire is typically attached to an appliance, tool, or case that is part of the electrical box or its exterior.
What is grounding electrode ?
A conductive object known as a grounding electrode creates a direct connection to the earth or ground. A grounding electrode must make direct contact with the ground; this is crucial. Although there are many conductive items in a structure, not all of them directly link to ground.
A grounding electrode conductor must be sized in line with 250.66 for the derived ungrounded conductors for each individually deriving system. It is utilized to link the grounded conductor of the derived system to the grounding electrode as outlined in 250.30(A) (4).
Therefore, it is utilized to link the grounded conductor of the derived system to the grounding electrode as outlined in 250.30(A) (4).
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Which statement best completes the diagram?
Constitutional Limits on
Goverment Power
States have some independence from the federal government.
Citizens have rights that the government cannot take away.
• A. Citizens are not forced to pay taxes they do not support.
B. Congress can only pass a set number of laws per year.
• C. Branches of government can check each other's actions.
• D. Local governments are free to ignore federal laws.
SUBMIT
Answer: It is b.
Explanation:
Environmental science includes elements of other related sciences. Give 2 examples of related sciences
.
Answer:
Biology, Geology, Geography, chemistry, etc.
Explanation:
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The period of oscillation is 4.44 s
What is the period of oscillation?The period of oscillation is the time it takes the spring to complete one cycle of motion.
How to find the period of oscillation of the spring using energy?Using the law of conservation of energy, the total mechanical energy at the origin (x = 0) equals the total mechanical energy at maximum displacement (x = A).
Since
the potential energy of the mass is U = kx⁴ and the kinetic energy of the mass K = 1/2mω(A² - x²) where k = positive constant = 1, m = mass of object = 1ω = angular speed of object = 2π/T where T = period of oscillationA = maximum displacement of mass = 1 and x = displacement of massSo, U₁ + K₁ = U₂ + K₂ where
U₁ = potential energy at (x = 0) = 0 (since there is no displacement, K₁ = kinetic energy at (x = 0) = 1/2mω(A² - x²) = 1/2mω(A² - 0²) = 1/2mω²A² = 1/2m(2π/T)²A² = 2m(π/T)²A² ,U₂ = potential energy at (x = A) = kA⁴ and K₂ = kinetic energy at (x = A) = 0 J (since it is stationary here)So, substituting the values of the variables into the equation, we have
U₁ + K₁ = U₂ + K₂
0 + 2m(π/T)²A² = kA⁴ + 0
2m(π/T)²A² = kA⁴
2m(π/T)² = kA²
Making T subject of the formula, we have
T² = 2mπ²/kA²
T = π/A√(2m/k)
Since m = k = A = 1, we have that the period of oscillation is
T = π/A√(2m/k)
T = π/1√(2 × 1/1)
T = π√2
T = 1.4142π
T = 4.443 s
T ≅ 4.44 s
So, the period is 4.44 s
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PLS HELP The moon orbits the Earth every 27 days. The distance between the Earth and the moon is 3.84 x 10^8 m. What is the tangential velocity of the moon?
Round your answer to the nearest whole number. Your answer should be in units of m/s.
The tangential speed of the moon as it leaves the orbit of the earth to the nearest whole number is 9 * 10^7 m/s.
What is the tangential velocity?We know that the tangential velocity has to do with the velocity of the moon when it leaves the circular orbit of the earth. For this we have to call to mind some of the basics of the circular motion. We have to use the formula that says;
V = 2πr/T
We now have to define each and every one of the terms that we have in the equation so that we can be able to apply them to be able to solve the problem meaningfully and we have;
V = velocity
r = Distance covered
T = Period
Where we have from the question;
V = ?
r = 3.84 x 10^8 m
T = 27 days
V = 2 * 3.142 * 3.84 x 10^8/27
V = 8.9 * 10^7 m/s
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The (Figure 1) shows two thin beams joined at right angles. The verticalbeam is 12.0kg and 1.00 m long and the horizontal beam is 26.0kg and 2.00 m long. Neglect the lateral dimensions of the beams.1)Find the center of gravity of the two joined beams. Express your answer in the form x,y, taking the origin at the corner where the beams join.2)Calculate the gravitational torque on the joined beams about an axis through the corner
A) The center of the gravity of the two joined beams is;
(x, y) = (25/44), (19/88)
B) The gravitational torque on joined beams about an axis through the corner is;
τ = 245 N.m
How to calculate the gravitational torque on the joined beams about an axis through the corner?We have;
Mass of the vertical beam; m₂ = 19 kg
Mass of the horizontal beam, m₁ = 25 kg
Length of the horizontal beam; L₁ = 2 m
Length of the vertical beam; L₂ = 1 m
A) The formula for the center of gravity of the two joined beams is;
(x, y) = [(m₁x₁ + m₂x₂)/(m₁ + m₂)], [(m₁y₁ + m₂y₂)/(m₁ + m₂)]
Where;
(x₁, y₁) is the center of gravity on horizontal beam
(x₂, y₂) is the center of gravity on vertical beam
(x₁, y₁) = (L₁/2, 0)
Putting in the relevant values gives;
(x₁, y₁) = (2/2, 0)
(x₁, y₁) = (1, 0)
(x₂, y₂) = (0, L₂/2)
Putting in the relevant values gives;
(x₂, y₂) = (0, 1/2)
(x₂, y₂) = (0, 0.5)
Thus, the center of gravity of the 2 joined beams is;
(x, y) = [((25 × 1) + (19 × 0))/(25 + 19)], [((25 × 0) + (19 × 0.5)))/(25 + 19)]
(x, y) = (25/44), (19/88)
B) The formula for the gravitational torque on the joined beams about an axis through the corner is given as;
τ = (m₁g)x₁ + (m₂g)x₂
Putting in the relevant values;
τ = (25 × 9.8)1 + (19 × 9.8)0
τ = 245 N.m
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(5%) Problem 13: Three uniform spheres are rolling without slipping Sphere A hat mau M and tadius R Sphere Bhas mass 2M and radius 28. Sphere C has maus Mind radius 2R 25% Part() The spheres are placed at the top of an incline and released from rest. Which one is first to reach the bottom of the incline? Choose the best answer Grade 5mmary OB Deduction 09 ΟΑ. Pot 1009 QC All three reach the bottom at the same time Salons Attempting per po 25% Part (6) The spheres are rolling on a flat surface with the same linear speed. Which one has the largest angular speed? Choose the best answer Grade Summary O A and Deductions Bande Potential 10095 All three spheres have the same angular speed ОА Submissions Attempts remaining per attempt detalii 25% Part() The spheres are rolling on a flat surface with the same angular speed. Which one has the largest linear speed? Choose the best answer Grade Summary O A and COAOA, B and C OB and Potes 100% Deduction 09 Submissions Attraps e top of an incline and released from rest. Which one is first to reach the bottom of the incline? Choose the best answer A 25% Part (b) The spheres are rolling on a flat surface with the same linear speed. Which one has the largest angular speed? Choose the best answer A 25% Part() The spheres are rolling on a flat surface with the same angular speed. Which one has the largest linear speed? Choose the best answer 4 239 Part (d) Which of the spheres has the largest moment of inertia? Choose the best answer OC Grade Summary Dedactice 09 ОА Potential All three spheres have the same moment of mettia Submit Attempt 100% OB
Based on the given question, A has highest angular speed, B and C has highest linear speed and B has highest moment of Inertia.
What are spheres?
A sphere is a geometrical object that is a three-dimensional analog to a two-dimensional circle. A sphere is a set of points that are all at the same distance r from a given point in three-dimensional space. That given point is the center of the sphere, and r is the sphere's radius.
From the given question,
[tex]m_{A} = M\\ m_{B} = 2M\\m_{C} = M\\R_{A} = M\\R_{B} = 2R\\R_{C} = 2R\\\\[/tex]
a) The acceleration of a body along an inclined for rolling without slipping is given by -
[tex]a = \frac{ g sin \theta}{1 + \frac{I}{mR^{2} } }[/tex]
For Spheres, I = 2/5 mR²
[tex]a_{A} = \frac{ g sin \theta}{1 + \frac{2}{5}mR^{2} } } =\frac{5g sin \theta}{7}[/tex]
[tex]a_{B} = \frac{g sin \theta}{1 + \frac{\frac{2}{5}(2m)(2R^{2} ) }{(2m)(2R^{2} )} } = \frac{5g sin \theta}{7}[/tex]
[tex]a_{C} = \frac{g sin \theta}{1 + \frac{\frac{2}{5}(m)(2R^{2} ) }{(m)(2R^{2} )} } = \frac{5g sin \theta}{7}[/tex]
Since all three above values are same so they reach at same time.
b) Let the linear speed be V
We have angular speed ω = V/R
ωA = V/R, ωB = V/2R, ωC = V/2R
A has highest angular speed
c) Let the angular speed be ω
VA = ωR,
VB = ω(2R)
VC = ω(2R)
B and C has highest linear speed
D) Moment of Inertia for solid sphere = I = 2/5 mR²
⇒ IA = 2/5 mR²
IB = 2/5 (2m)(2R)² = 16/5 mR²
Ic = 2/5 (m)(2R)² = 8/5 mR²
B has highest moment of Inertia
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AA1056317
13 hours ago
Physics
College
If you weigh 982 N on Earth, what would your weight be on the surface of Jupiter?
g = 9.8 m/s^2 on Earth's surface
g = 26.0 m/s^2 on Jupiter's surface
mass of the Earth is 6 x 1024 kg
mass of Jupiter is 1.9 x 1027 kg
radius of Earth is 6.4 x 106 m
radius of Jupiter is 7 x 107 m
Round your answer to the nearest whole number.
(ANSWER IS 2605 BUT I NEED TO KNOW HOW TO GET THE ANSWER)
The magnitude of your weight on the surface of Jupiter is determined as 2,605.2 N.
What is your mass?The magnitude of your mass which does not change on both Earth and Jupiter is calculated from your weight on Earth by applying Newton's second law of motion as follows;
W = mg
where;
m is your massg is acceleration due to gravity on Earthm = W / g
m = 982 N / ( 9.8 m/s²)
m = 100.2 kg
The magnitude of your weight on the surface of Jupiter is calculated as follows;
W = mg
where;
m is your massg is acceleration due to gravity on JupiterW = 100.2 kg x 26 m/s²
W = 2,605.2 N
Thus, the weight of objects or individual changes with direction due to variation in acceleration due to gravity while the mass of objects or individuals remains constant.
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Find the magnitude of velocities vA and vB in the figure below, where,
= 24.0° and vtot = 5.96 m/s.
The magnitude of velocity A is 3.06 m/s and the magnitude of velocity B is 3.5 m/s.
What is the magnitude of velocity A and B?The magnitude of velocity A and B in the given figure is determined by applying parallelogram law of vector addition.
Vr² = Va² + Vb² - 2(Va)(Vb) cosθ
where;
Vr is the resultant velocity or total velocityVa is the velocity of AVb is the velocity of Bθ is the angle between velocity A and velocity BThe angle between the two velocities is calculated as follows;
θ = 180 - (23⁰ + 26.5⁰)
θ = 130.5⁰
Apply sine rule and determine the values of each of the velocities.
Va / sin(23) = V(tot) / sin(130.5)
Va / sin(23) = 5.96 / sin(130.5)
Va = 5.96 (sin 23 / sin 130.5)
Va = 3.06 m/s
Vb / sin(26.5) = V(tot) / sin(130.5)
Vb = 5.96 (sin 26.5 / sin 130.5)
Vb = 3.5 m/s
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if you throw or launch the apple at a fast enough speed the time required for it to slow to a stop becomes infinite at this speed or faster it's not coming back we call this the escape speed at the surface of earth escape speed is 11 km x 25,000 miles per hour at this speed how long would it take to travel from los angeles to new york 4000 km brainly
The time would it take to travel from Los Angeles to New York 2.75 * 10^-3 s
What is the time taken?We call the velocity that is required for an object to escape the gravitational pull of the earth the escape velocity of the satellite. When a satellite has this velocity, the satellite is now able to freely escape from the earth and is now able to get into the outer space.
On the other hand, we would also have to remember the formula for the speed off an object. We have to remind ourselves that speed is a scalar quantity and this implies that the direction of the speed is not important when we are discussing the speed of a body.
Thus, we know that;
Speed = distance/time
time = distance/speed
time = 11 km/s/ 4000 km
time = 2.75 * 10^-3 s
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Should a scientist correct genetic codes if they find abnormalities?
The abnormalities in the genetic code must be found and corrected on time as it could lead to inherited disorders which could be life-threatening.
What are the abnormalities in genetic code?
Genetic abnormalities are the conditions which are caused by changes to the genes or chromosomes. Genetic disorders are also known as inherited disorders which are caused by mutations in the genetic code. Genetic disorders include disorders such as cystic fibrosis, sickle cell disease, and Tay-Sachs disease.
Cells become diseased because certain genes work incorrectly or does not work at all. Replacing the defective genes in the diseased organisms may help treat certain diseases. For instance, a gene called p53 prevents tumor growth. Several types of cancer which have been linked to problems with the p53 gene.
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2. What is the force between two aluminum spheres if one has a charge of 3x10-5C
the other had a charge of 9x10-5C and they are 0.05 m from each other?
The force between the charges is 9.25 × 10^3 N.
What is Coulomb's Law?
Coulomb's law states that the force of attraction or repulsion between two charged bodies is inversely proportional to the square of the distance between them and directly proportional to the product of their charges.
That is , F=K (q1 q2)÷ r²
In this problem,
q1 = 3x10^-5 C
q2= 9x10^-5 C
r = 0.05 m
Substituting ,
F = (9×10^9 × 3x10^-5 × 9x10^-5 )÷( 0.05)²
= 9.25 × 10^3 N
Therefore the force between the charges is 9.25 × 10^3 N
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in the drake equation, a value of flife that is close to one and a value of fciv that is close to zero would imply .
In the drake equation, a value of flife that is close to one and a value of fciv that is close to zero would imply primitive life is common but intelligent life is rare.
What is the drake equation?
The Drake equation has been criticized, but not for the equation itself, rather for the fact that many of its estimated values are highly speculative, with the cumulative multiplicative effect being that the uncertainty associated with any derived value is so great that the equation cannot be used to make conclusive judgments.
The Drake equation is a probabilistic method for calculating the number of extraterrestrial civilizations in the Milky Way Galaxy that are currently active and capable of communication.
Frank Drake created the equation in 1961, not to count the number of civilizations but rather to encourage discussion among scientists at the inaugural conference on the hunt for extraterrestrial intelligence (SETI). The equation encapsulates the key ideas that researchers must take into account while debating the possibility of other radio-communicative life. It is better to think of it as an estimation rather than a sincere endeavor to come up with a specific number.
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