Answer:
60 seconds
Explanation:
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If the total energy at the top is 5 J. What is the total energy at the bottom of the drop? Ignore air resistance.
If the total energy at the top is 5 J, then the total energy at the bottom of the drop would also be 5 J. Since we are ignoring air resistance, we can apply the law of conservation of energy which states that energy cannot be created or destroyed but it can only be transformed from one form to another.
Assuming that the object starts from rest, the total energy at the top of the drop will be equal to the potential energy (PE) since there is no kinetic energy (KE) present in the object when it's at rest. Mathematically, we can represent this as:
Total energy at the top (E) = PE = mgh, Where m is the mass of the object, g is the acceleration due to gravity (9.8 m/s²) and h is the height of the drop.
Now, as the object falls down, potential energy gets converted into kinetic energy. At the bottom of the drop, all the potential energy is converted into kinetic energy since the object has no height left to fall. Mathematically, we can represent this as:
Total energy at the bottom (E) = KE
= 1/2 mv², where v is the velocity of the object at the bottom of the drop. Since we are assuming that air resistance is ignored, we can use the law of conservation of energy to relate the total energy at the top to the total energy at the bottom.
Mathematically, we can represent this as: mgh = 1/2 mv²
Simplifying, we get: v² = 2ghv
= √(2gh)
Substituting the given values, we get: v = √(2 x 9.8 x h)
= √(19.6h)
Now, we can use the formula for KE to calculate the total energy at the bottom: Total energy at the bottom (E) = KE
= 1/2 mv²
= 1/2 m(19.6h)
= 9.8mh
Since h is the height of the drop, we can see that the total energy at the bottom is proportional to the height of the drop.
In other words, if the height of the drop is doubled, the total energy at the bottom will also be doubled. Therefore, if the total energy at the top is 5 J, then the total energy at the bottom of the drop would also be 5 J.
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A boy is watching his grandfather fire an old cannon. He notices that whenever the cannonball is fired, it moves with a very high velocity to the right. He also notices that when the cannonball is fired, the cannon moves very slowly to the left. How does conservation of momentum explain these observations?.
Since the system's total momentum was zero before the cannon was fired, the momentum of the projectile and the cannon must be equal and opposing. The cannon will have a lower velocity since it has a lot greater mass.
Law of conservation of momentum states that total momentum of system remains conserved in the absence of external force.
As we know that know external no force is acting in the on the system therefore momentum should be conserved according to the law of the conservation of momentum.
As we know that momentum is given by the formula
momentum = mass × velocity
initially momentum of the system is equal to zero because the velocity of the system is zero.
After fire ball move with high velocity means we have some momentum in the direction of the ball's motion but according to the law of the conservation there should be some momentum in the opposite direction which will cancel out the momentum of the ball therefore cannon will also move in opposite direction.
But as we know that momentum = mass × velocity
As the mass of the cannon is much higher than the mass of the ball therefore less velocity can generate the same amount of the momentum that is required to the cancel the momentum of the ball .
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You are gardening in the peak of summer, it hasn't rained in a week, and your plants are looking rough. You decide to water the plants for an hour. The next day you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. With what you know from class, please try and explain what is happening to your plants.
In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.
However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.
It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.
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If an astronaut weighs 981 N on Earth and only 160 N on the
Moon, then what is his mass on Earth?
the mass on Moon will be 98.1 kg.
Given - Weight on Earth and moon
Find - Mass on Moon
First, determine the mass of the Earth using its gravitational acceleration.
Taking acceleration due to gravity as 10 m/s².
Mass = weight/acceleration due to gravity
Mass = 981/10
Performing division
Mass = 98.1 kg
As is already common knowledge, the mass is independent of the acceleration caused by the planet's gravity. The mass of the moon will therefore be 98.1 kg.
What is the Earth's mass?The earth weighs 6. 1024 kilograms, while the moon weighs 7.4 1022 kilograms. Calculate the force that the earth would apply on the moon if their distance were 3.84 x 105 miles.
The Moon's mass is not included in the Earth's mass. The Earth+Moon system has a mass of about 6.04561024 kg since the Moon's mass is roughly 1.2% that of the Earth.
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.
Information about conservation of energy
Explanation:
Energy conservation is the effort made to reduce the consumption of energy by using less of an energy service. This can be achieved either by using energy more efficiently (using less energy for a constant service) or by reducing the amount of service used (for example, by driving less). Energy conservation is a part of the concept of Eco-sufficiency. Energy conservation reduces the need for energy services and can result in increased environmental quality, national security, personal financial security and higher savings.It is at the top of the sustainable energy hierarchy. It also lowers energy costs by preventing future resource depletion.
Energy can be conserved by reducing wastage and losses, improving efficiency through technological upgrades and improved operation and maintenance. On a global level energy use can also be reduced by the stabilization of population growth.
Energy can only be transformed from one form to other, such as heat energy to motive power in cars, or kinetic energy of water flow to electricity in hydroelectric power plants. However machines are required to transform energy from one form to other. The wear and friction of the components of these machine while running cause losses of very high amounts of energy and very high related costs. It is possible to minimize these losses by adopting green engineering practices to improve life cycle of the components.
Hope this helps u ......Explanation:
Is the earth round? Or is it flat like some people say
Answer: The Earth is an oblate spheroid, meaning it is roughly spherical in shape but flattened at the poles and bulges at the equator. This shape has been scientifically proven through centuries of evidence and observations. While some people may claim that the Earth is flat, this idea is not supported by scientific evidence.
what is the economic system in the united states?
A. Capitalist economy
B. Stock Market economy
C. Global economy
D. Communist economy
Answer:
A. Capitalist economy
Explanation:
The United States is a capitalist economy. Hope this helps, thank you !!
why does the interior of an evolved high-mass star have layers like an onion
The interior of an evolved high-mass star has layers like an onion due to the process of nuclear fusion.
As the star ages, it burns through its fuel, causing the core to contract and heat up. This increase in temperature triggers new fusion reactions that produce heavier elements and release even more energy. The resulting pressure and radiation push outwards, creating distinct layers of different elements and densities within the star. This process is known as nucleosynthesis and produces the layers within the high-mass star, similar to the layers within an onion. Each layer is formed by a different fusion reaction and contains a unique composition of elements, leading to the formation of complex structures within the star.
As nuclear fusion processes progress, the inside of an evolved high-mass star layers up like an onion, with each layer designating a location where a particular fusion reaction is occurring. This layering is a product of the star's core's shifting circumstances as it goes through several stages of nuclear burning.
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A fluorescent lamp with a 30 in its nomenclature indicates it produces light with a color temperature of ____ k, which would provide good rendition to warm colors.
Answer:
Fluorescent lamp with a 30 in its nomenclature indicates it produces light with a colour temperature of 3000k
Explanation:
A low-pressure mercury vapor gas discharge lamp called a fluorescent lamp or fluorescent tube employs fluorescence to create visible light. Mercury vapor is excited by an electric current in the gas, which generates short-wave UV rays that causes a phosphor coating on the inside of the lamp to glow. For a fluorescent lamp with 30 in to provide good rendition to warm colour, the colour temperature must be at least up to 3000k. The colour of light emitted by a hypothetical opaque, non-reflective substance at a specific temperature expressed in kelvins is known as colour temperature. Regardless of the temperature of other light sources, the colour of their light is classified using the colour temperature scale.
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A 19 kg ball has an initial velocity of 10 m/s. How much energy will be transformed into gravitational force?
Answer:
E = 950 J
Explanation:
The total amount of energy that can be transformed into gravitational energy will be equal to the kinetic energy of the ball at initial state:
\(E = K.E = \frac{1}{2} mv^2\)
where, E = Energy = ?
m = mass of the ball = 19 kg
v = initial speed of the ball = 10 m/s
Therefore,
\(E = \frac{1}{2} (19\ kg)(10\ m/s)^2\)
E = 950 J
Which method of measurement is most likely to be both accurate and
precise?
A. Measuring the temperature of a pond using a digital thermometer
OB. Measuring the temperature difference between two objects by
comparing how they feel
C. Measuring the speed of a runner by comparing it to that of other
runners
O
D. Measuring time using a clock that has slowed down
The method of measurement most likely to be both accurate and precise is measuring the temperature of a pond using a digital thermometer, as listed in Option A, as there is less chance of mistakes when measured by machines.
What is a precise measurement?Accuracy refers to how close the measured value is to the true value, while precision refers to how reproducible the measurements are, and using digital thermometers is typically accurate and precise because there is a lower chance of human-like mistakes.
Hence, the method of measurement most likely to be both accurate and precise is measuring the temperature of a pond using a digital thermometer, as listed in Option A.
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A ball is thrown upward with a speed of 30 m/s. Approximately how much time does it take the ball to travel from the release location (A) to its highest point (B)? Approximately how much total time is the ball in the air before it returns back to its original height (C)?
Answer:
The answer is below
Explanation:
Using the equation of newton law of motion for an object thrown vertially upwards:
v = u - gt
where u is the initial velocity, g = acceleration due to gravity and t is the time taken to reach maximum height.
Given that u = 30 m/s, at maximum height, v = 0, g = 10 m/s². Therefore:
0 == 30 - 10t
10t = 30
t = 30/10
t = 3 seconds
b) The time taken to reach the highest point = 3 seconds. Therefore the total time before it returns back to its original height = 2t = 2(3) = 6 seconds
Three point charges lie on the same x-axis. Charge 1 (-2. 1 μC) is at the origin, charge 2 (+3. 2 μC) is at x = 7. 5 cm, and charge 3 (-1. 8 μC) is at x = 11 cm. What are the direction and the magnitude of the total force exerted on charge 1
The direction of the total force on charge 1 is in positive x-direction and the magnitude is 7.94 N.
The total force on charge 1 due to the other two charges can be found by calculating the electrostatic force between charge 1 and each of the other charges, and then adding the two forces as vectors.
The electrostatic force between two point charges q1 and q2 separated by a distance r is given by Coulomb's law:
\(F=k \frac{q_{1}q_{2} }{r^{2} }\)
where k is Coulomb's constant and equal to 9 x 10⁹ Nm²/C².
Since they have opposite signs, the force between charge 1 and charge 2 is attractive.
Given, distance between them, r₁₂ = 7.5 cm = 0.075 m
∴ The magnitude of the force is:
|F₁₂| = {k * |q₁| * |q₂|} / r₁₂²
= [(9 x 10⁹ Nm²/C²) * (2.1 μC) * (3.2 μC)] / (0.075 m)²
= 10.75 N.
The direction of the force is towards charge 2, which is in the positive x-direction.
Since they have the same sign, the force between charge 1 and charge 3 is repulsive.
Given, distance between them, r₁₃ = 11 cm = 0.11 m
∴ The magnitude of the force is:
|F₁₃| = {k * |q₁| * |q₃|} / r₁₃²
= [(9 x 10⁹ m²/C²) * (2.1 μC) * (1.8 μC)] / (0.11 m)²
= 2.81 N.
The direction of the force is towards charge 3, which is in the negative x-direction.
Total force or Net force on charge 1;
|F| = |F₁₃| - |F₁₂|
= 10.75 N - 2.81 N (∵ both the forces are in opposite direction)
= 7.94 N
Therefore, the direction of the total force is in the positive x-direction i.e., towards charge 2.
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To find the total force exerted on charge 1, we need to calculate the individual forces between charge 1 and charges 2 and 3, and then add them vectorially.
The formula to calculate the electrostatic force between two point charges is given by Coulomb's Law:
F = (k * |q1 * q2|) / r^2
where:
- F is the magnitude of the force
- k is the electrostatic constant (k ≈ 9 × 10^9 N m^2/C^2)
- q1 and q2 are the magnitudes of the charges
- r is the distance between the charges
Let's calculate the forces:
For charge 1 and charge 2:
q1 = -2 μC (converted to Coulombs: -2 * 10^-6 C)
q2 = 2 μC (converted to Coulombs: 2 * 10^-6 C)
r = 7.5 cm (converted to meters: 7.5 * 10^-2 m)
Using Coulomb's Law, we can calculate the force between charge 1 and charge 2:
F1-2 = (k * |q1 * q2|) / r
F1-2 = (9 * 10^9 N m^2/C^2) * (|-2 * 10^-6 C * 2 * 10^-6 C|) / (7.5 * 10^-2 m)^2
Calculating this expression yields the magnitude of the force between charge 1 and charge 2.
Now, let's calculate the force between charge 1 and charge 3:
q3 = -1.8 μC (converted to Coulombs: -1.8 * 10^-6 C)
r = 11 cm (converted to meters: 11 * 10^-2 m)
Using Coulomb's Law, we can calculate the force between charge 1 and charge 3:
F1-3 = (k * |q1 * q3|) / r²
F1-3 = (9 * 10^9 N m^2/C^2) * (|-2 * 10^-6 C * -1.8 * 10^-6 C|) / (11 * 10-²m)²
Calculating this expression yields the magnitude of the force between charge 1 and charge 3.
Finally, to find the total force exerted on charge 1, we need to add the forces F1-2 and F1-3 vectorially. Since charge 2 is at a positive x-coordinate and charge 3 is at a negative x-coordinate, the forces will have opposite directions. Therefore, we subtract the magnitudes of the forces:
F_total = F1-2 - F1-3
Now you can perform the calculations to find the magnitude and direction of the total force exerted on charge 1.
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women today make up ____% of the u.s. labor force.
As of September 2021, women made up approximately 47% of the U.S. labor force.
This percentage reflects the significant progress women have made in workforce participation over the years. The increased representation of women in the labor force is the result of various factors, including advancements in gender equality, improved access to education and career opportunities, and changing societal norms.
Women have made significant contributions to various industries and sectors, assuming roles across a wide range of professions. However, it's important to note that workforce demographics can change over time due to numerous factors, including economic conditions, cultural shifts, and policy changes.
Thus, it is recommended to refer to the most recent data from reliable sources, such as the U.S. Bureau of Labor Statistics, for the most accurate representation of women's participation in the U.S. labor force.
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Imagine running one hour straight west at 12 km/h and then changing direction quickly and running one hour straight north at 12 km/h. what was your velocity? round to the nearest whole number.
The velocity is approximately 17 km/h.
To find the velocity after running one hour straight west at 12 km/h and then changing direction to run one hour straight north at 12 km/h, we can use vector addition.
When moving west, the velocity vector is (12 km/h, 0 km/h) since there is no northward component.
When moving north, the velocity vector is (0 km/h, 12 km/h) since there is no westward component.
To find the total velocity, we can add these vectors:
(12 km/h, 0 km/h) + (0 km/h, 12 km/h) = (12 km/h, 12 km/h)
Therefore, the velocity after running one hour straight west and then changing direction to run one hour straight north is approximately (12 km/h, 12 km/h).
To round to the nearest whole number, we can take the magnitude of the velocity vector:
Magnitude = sqrt((12 km/h)^2 + (12 km/h)^2) ≈ 16.97 km/h
Rounding to the nearest whole number, the velocity is approximately 17 km/h.
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Magnitude is used to show the brightness of one object compared with the brightness of another object with the _____ magnitude of a star referring to a star's brightness as seen from your eyes and _____ magnitude being the actual brightness of a star.
The apparent magnitude of a star refers to its brightness as seen from your eyes and absolute magnitude being the actual brightness of a star.
What is magnitude?Magnitude can be defined as a unitless measure which is used to show the brightness of an object in comparison with the brightness of another object.
Basically, there are two types of magnitude and these include the following:
Apparent magnitudeAbsolute magnitudeIn conclusion, the apparent magnitude of a star refers to its brightness as seen from your eyes and absolute magnitude being the actual brightness of a star.
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I'm pretty sure it's apparent; absolute
adolf and ed are wearing harnesses and are hanging at rest from the ceiling by means of ropes attached to them. face to face, they push off against one another. adolf has a mass of 120 kg, and ed has a mass of 73 kg. following the push, adolf swings upward to a height of 0.48 m above his starting point. to what height above his own starting point does ed rise?
When Adolf swings, kinetic energy is converted to potential energy kg = 4,204.8m/s
What exactly does kinetic energy mean?The energy a thing has as a result of motion is known as kinetic energy. A force must be applied to an object in order to accelerate it. We must make an effort in order to apply a force. After the work is finished, energy is transferred to the item, which then moves at a new, steady velocity.
Consider Adolf
KG= M
120kg
73kg
0.48m
kg=120 *73kg*0.48m/s
kg = 4,204.8m/s
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Please help me explain in details for all question 1. Thank you.
QUESTION 1 a) Calculate the density of the moon by assuming it to be a sphere of diameter 3475 km and having a mass of 7.35 x 1022 kg. Express your answer in g/cm³. (3 marks) b) A car accelerates fro
Density is the ratio of mass to volume of an object. To calculate the density of the moon, we will use the formula:ρ = m/V where ρ is the density, m is the mass, and V is the volume.
The volume of a sphere is given as:V = (4/3)πr³where r is the radius of the sphere. The diameter of the moon is given as 3475 km, its radius is:r = (3475/2) km = 1737.5 km = 1.7375 x 10⁶ m Substituting the values of m and V in the formula for density,
we have:ρ = m/V= (7.35 x 10²² kg)/[(4/3)π(1.7375 x 10⁶ m)³]= 3.35 g/cm³ , the density of the moon is approximately 3.35 g/cm³.b) .
We can calculate the final velocity of the car by using the formula:v² = u² + 2 as where v is the final velocity, u is the initial velocity, a is the acceleration, and s is the distance traveled.
Substituting the values given, we have:v² = (0 m/s)² + 2(4.5 m/s²)(110 m)= 990 m²/s² Taking the square root of both sides, we get:v = √(990 m²/s²)≈ 31.4 m/s , the final velocity of the car is approximately 31.4 m/s.
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The different odds of survival between a preterm and a full-term newborn involve: cephalic development.
the maturation of the skeletal system.
the maturation of the neurological, respiratory, and cardiovascular systems.
proximo-distal development.
Answer: B
Explanation:
what is the term for an absorptive material electrically attached to the surface of a flat-panel detector?
The terms of absorptive material electrically attached to the surface of a flat-panel detector are:
The absorptive material should be attached of the surface with conductor.The joining must be welded with eclectically conducting materials.There must be no insulator used in attachment of the absorptive material with flat-panel detector (FPD).What is Flat-panel Detector?
Flat-panel detector (FPD) is an instrument of digital radiography used for conversion of x-rays to light ( which is termed as indirect conversion) or charge ( which is termed as direct conversion) by using thin film transistor (TFT) array.
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In which instrument of the following the water works as a bulb
Answer:
hydrometer
Explanation:
A hydrometer is an instrument used to determine specific gravity. It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats. Hydrometers can be divided into two general classes: liquids heavier than water and liquids lighter than water.
How long will it take a 6000W motor to lift a 5000kg load through a height of 2.5m?
Answer:
20.4375 seconds.
Explanation:
Wattage = Work / time
Work = f * d
F = mass * acceleration
mass = 5000 kg
acceleration = force of gravity
acceleration = 9.81
Force = 5000 * 9.81
Force = 49050 N
Work = F * d
d = 2.5
Work = 49050 * 2.5
Work = 122625 Joules
Wattage = Work / time
time = work / wattage
wattage = 6000 watts
time = 122625 / 6000
time = 20.4375 seconds.
if one star is three times as far away from earth as another, and twice as bright, its luminosity is how many times greater than that of the other star
The luminosity of a star is directly proportional to its brightness and the square of its distance from Earth. In this scenario, let's assume the closer star has a luminosity of 1 unit.
Since the second star is three times farther away, its distance from Earth would be 3^2 = 9 times greater than the closer star. Given that the second star is also twice as bright, its total luminosity would be 9 x 2 = 18 units. The second star's luminosity would be 18 times greater than that of the first star. This is because luminosity depends on both the brightness and the square of the distance from Earth. The second star is three times farther away and twice as bright, resulting in a luminosity that is 18 times higher compared to the first star.
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2. 9-kg sacks of potatoes are repeatedly dropped onto a platform held up by a large spring and then removed before the next sack falls. How does the distance the spring compresses when the potatoes are dropped from a first height of 3. 9 m compare to the distance the spring compresses when dropped from a second height of 15. 3 m?
The distance the spring compresses when the potatoes are dropped from a height of 15.3 m is four times greater than the distance it compresses when dropped from a height of 3.9 m.
When an object is dropped, its potential energy is converted into kinetic energy as it falls. The potential energy is given by the equation PE = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height. As the potato sacks have the same mass, the potential energy is directly proportional to the height.
The compression of a spring is related to the potential energy transferred to it. According to Hooke's law, the force exerted by a spring is proportional to its compression. Since the potential energy is proportional to the height, and the force is proportional to the compression, we can conclude that the compression of the spring is also proportional to the height.
Therefore, when the potatoes are dropped from a height of 15.3 m compared to 3.9 m, the height increases by a factor of approximately four. Consequently, the distance the spring compresses will also increase by a factor of four.
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Write your answer to the question below.
-How do you think energy is transformed in the Drop Tower( ride in a amusement park)?
Answer:
Hi... Potential energy is converted to kinetic energy and kinetic energy is converted to potential energy
A student drops a rock from rest at a distance h above the ground such that the rock hits the ground at time t. At what distance above the ground should the rock be dropped such that it hits the ground at 2t after it is released from rest
The distance above the ground the rock should be dropped such that it hits the ground at 2t after it is released from rest is 4h.
What is the height of fall of the rock?
The height of fall of the rock is calculated by applying the following kinematic equation as shown below.
h = vt + ¹/₂gt²
where;
v is the initial velocity of the rockt is the time of motion of the rockg is acceleration due to gravityh is the height of fall of the rockh = 0 + ¹/₂gt²
h = ¹/₂gt²
2h = gt²
g = 2h / t²
h₁ / t₁² = h₂ / t₂²
The distance above the ground the rock should be dropped such that it hits the ground at 2t after it is released from rest is calculated as;
h₂ = ( h₁ / t₁² )(t₂²)
h₂ = ( h/t²)(2t)²
h₂ = ( h/t²)(4t²)
h₂ = 4h
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At what point should a business information manager assume that he or she will not receive any more new questions or requests to solve problems?
A.
Questions and problem-solving requests usually end after about six weeks.
B.
It can take six months or more for a business information manager to stop receiving questions or requests.
C.
It takes about a year before the manager has answered all questions and solved all problems.
D.
There are always new questions to answer and new problems to solve in this line of work.
There are always new questions to answer and new problems to solve in this area. The correct option is D.
Why is problem solving essential in business?It is a necessary skill for supervisors and other senior positions. Individuals who have excellent problem-solving skills are a precious and considered reliable attribute in any team.
They are the ones who come up with new ideas, better ways of operating, make things easier to understand, or help customers save time and money.
Before attempting to solve a problem, ascertain whether it is truly a problem. In addition to you, but additionally to those who are affected.
In this line of work, there are always fresh questions to answer and problems to solve.
Thus, the correct option is D.
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how to calculate tension between two boxes
To calculate the tension between two boxes, you will need to know the mass of each box, the acceleration of the system, and the angle at which the boxes are positioned.
The formula for calculating tension is:
T = (m1 * a) / sin(θ)
Where T is the tension, m1 is the mass of the first box, a is the acceleration of the system, and θ is the angle at which the boxes are positioned.
The tension between two boxes is a force that acts on a rope or cable that connects the two boxes. When the boxes are pulled in opposite directions, the tension force is created in the rope, which acts to keep the rope taut and prevent it from breaking.
The magnitude of the tension force depends on several factors, including the mass of the boxes, the acceleration of the boxes, and the frictional forces acting on the boxes. In general, the tension force is equal in magnitude but opposite in direction between the two boxes, as required by Newton's Third Law of Motion.
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TRUE/FALSE. a recently discovered extrasolar planet appears to be rockier and denser than earth. it is 16 times as massive as earth, but its diameter is only twice that of earth.
The acceleration of free fall on the planet is given by 39.2 m/s².
What is the acceleration of free fall?The acceleration of free fall is the acceleration at which a body falling freely experiences the gravitational pull of a single planet. It is also known as a gravitational acceleration.
Value of the acceleration of free fall on earth is 9.8 m/s².
The formula of acceleration of free fall on any planet is given by:
g₁ = GM/R²
As the extrasolar planet appears to be rockier and denser than earth. it is 16 times as massive as earth, but its diameter is only twice that of earth, the acceleration of free fall on any planet is given by:
g₁ = GM/R² = 16GMe/(2Re)² = 4 GMe/Re = 4g = 4× 9.8 m/s² = 39.2 m/s² .
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The air exerts a forward force of 10 N on the propeller of a 0.20-kg model airplane. If the plane accelerates forward at 2.0 m/s 2 , what is the magnitude of the resistive force exerted by the air on the airplane?
Answer:
12.53
Explanation:
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