A satellite in low-Earth orbit is not truly travelling through a vacuum Rather , it moves through very thin air. Does the resulting air friction cause the satellite to slow down?

Question

Verified by Toppr

Answer 1

Air resistance causes a decrease in the energy of the satellite-Earth system. This reduces the diameter of the orbit, bringing the satellite closer to the surface of the Earth. A satellite in a smaller orbit, however, must travel faster. Thus, the effect of air resistance is to speed up the satellite!

Answer 2

Air resistance causes a decrease in the energy of the satellite-Earth system. This reduces the diameter of the orbit, bringing the satellite closer to the surface of the Earth. A satellite in a smaller orbit, however, must travel faster. Thus, the effect of air resistance is to speed up the satellite!

A satellite in low-Earth orbit is not truly travelling through a vacuum Rather , it moves through very thin air. Does the resulting air friction cause the satellite to slow down?

A bicyclist travels in a circle of radius $25.0$ m at a constant speed of $9.00$ m/s. The bicyclerider mass is $85.0$ kg. Calculate
the magnitudes of (a) the force of friction on the bicycle from the
road and (b) the net force on the bicycle from the road.

A satellite moves in a circular orbit at a constant speed around the Earth. Which of following statements is true?

The sun and earth each exert a gravitational force on the Moon. what is the ration $F_{s u n} / F_{E a r t h}$ of these two forces ( The average Sun-Moon distance is equal to Sun-Earth distance.)

Revise with Concepts

Universal Law of Gravitation - L1

The Gravitational Constant

A satellite in low-Earth orbit is not truly travelling through a vacuum Rather , it moves through very thin air. Does the resulting air friction cause the satellite to slow down?

A bicyclist travels in a circle of radius 25.0 m at a constant speed of 9.00 m/s. The bicyclerider mass is 85.0 kg. Calculate the magnitudes of (a) the force of friction on the bicycle from the road and (b) the net force on the bicycle from the road.

A satellite moves in a circular orbit at a constant speed around the Earth. Which of following statements is true?

The sun and earth each exert a gravitational force on the Moon. what is the ration Fsun​/FEarth​ of these two forces ( The average Sun-Moon distance is equal to Sun-Earth distance.)

Revise with Concepts

Universal Law of Gravitation - L1

The Gravitational Constant

A bicyclist travels in a circle of radius $25.0$ m at a constant speed of $9.00$ m/s. The bicyclerider mass is $85.0$ kg. Calculate
the magnitudes of (a) the force of friction on the bicycle from the
road and (b) the net force on the bicycle from the road.

The sun and earth each exert a gravitational force on the Moon. what is the ration $F_{s u n} / F_{E a r t h}$ of these two forces ( The average Sun-Moon distance is equal to Sun-Earth distance.)