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Q C Many people assume air resistance acting on a moving object will always make the object slow down. It can, however, actually be responsible for making the object speed up. Consider a 100 - kg Earth satellite in a circular orbit at an altitude of 200 km . A small force of air resistance makes the satellite drop into a circular orbit with an altitude of 100km. (e) Show that the system has lost mechanical energy and find the amount of the loss due to friction.

Sagot :

[tex]$E_i-E_f=-17.94 \times 10^9 \mathrm{~J}-\left(-18.30 \times 10^9 \mathrm{~J}\right)=3.60 \times 10^8 \mathrm{~J}$.[/tex]

The most effective forces on the object are the backward force of air resistance relatively very small in magnitude, and the force of gravity. Because the spiral path of the satellite is not perpendicular to the gravitational force, one element of the gravitational force pulls forward. at the satellite to do fantastic work & make its speed increase.

What is called gravitational force?

Gravity, additionally referred to as gravitation, is a force that exists amongst all material gadgets withinside the universe. For any objects or particles having nonzero mass, the force of gravity tends to draw them in the direction of each other. Gravity operates on objects of all sizes, from subatomic particles to clusters of galaxies.

To learn more about gravitational force, visit;

https://brainly.com/question/9266911

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