General Physics> Name two factors which determine whether ...

Name two factors which determine whether a planet has atmosphere or not?

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Nandini Sharma , 5 Years ago

Grade 10

23 Answers

Gaurav Yadav

Hey student.

(1) Acceleration due to gravity at the surface of planet

(2) Surface temperature of the planet.

This is the answer to your question. Hope this helps you.

Approved

Last Activity: 5 Years ago

Nandini Sharma

Where will a body weigh more at Delhi or at Shimla? Why?

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Last Activity: 5 Years ago

Gaurav Yadav

Hey student.

A body will weigh more at Delhi because at higher altitudes the value of g decreases.

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Last Activity: 5 Years ago

Nandini Sharma

On which fundamental law of physics is keplers second law is based?

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Gaurav Yadav

Hey student.

Law of conservation of angular momentum.

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Nandini Sharma

Which is greater the attraction of the earth for 1 kg of aluminum or aluminum or attraction of 1kg of aluminum for the earth?

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Last Activity: 5 Years ago

Gaurav Yadav

Hey student.

In accordance with the universal law of gravitation both the forces are equal and opposite.

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Last Activity: 5 Years ago

Nandini Sharma

Choose the correct alternative:

(a) If the zero of potential energy is at infinity, the total energy of an orbiting satellite is negative of its kinetic/potential energy.

(b) The energy required to launch an orbiting satellite out of earth's gravitational influence is more/less than the energy required to project a stationary object at the same height (as the satellite) out of earth's influence.

Last Activity: 5 Years ago

Gaurav Yadav

Hey student.

(a) Kinetic energy

(b) Less

(a) Total mechanical energy of a satellite is the sum of its kinetic energy (always positive) and potential energy (may be negative). At infinity, the gravitational potential energy of the satellite is zero. As the Earth-satellite system is a bound system, the total energy of the satellite is negative.

Thus, the total energy of an orbiting satellite at infinity is equal to the negative of its kinetic energy.

(b) An orbiting satellite acquires a certain amount of energy that enables it to revolve around the Earth. This energy is provided by its orbit. It requires relatively lesser energy to move out of the influence of the Earth's gravitational field than a stationary object on the Earth's surface that initially contains no energy.

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Last Activity: 5 Years ago

Nandini Sharma

The mass of moon is nearly 10% of the mass of the earth. What will be the gravitational force of the earth on the moon, in comparison to the gravitational force of the moon on the earth?

Last Activity: 5 Years ago

Gaurav Yadav

Hey student.

Both forces will be equal in magnitude as gravitational force is a mutual force between the two bodies.

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Last Activity: 5 Years ago

Nandini Sharma

Why does one feel giddy while moving on a merry round?

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Last Activity: 5 Years ago

Gaurav Yadav

Hey student.

When moving in a merry go round, our weight appears to decrease when We move down and increases when we move up, this change in Weight makes us feel giddy.

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Last Activity: 5 Years ago

Nandini Sharma

Name two factors which determine whether a planet would have atmosphere or not.

Please answer this question urgently. Please. Please. Please.

Last Activity: 5 Years ago

Gaurav Yadav

Hey student.

(i) Value of acceleration due to gravity (ii) surface temperature of planet.

This is the answer to your question. Hope this helps you.

Last Activity: 5 Years ago

Nandini Sharma

The force of attraction due to a hollow spherical shell of uniform density on a point mass situated inside is zero, so can a body be shielded from gravitational influence?

Last Activity: 5 Years ago