(a) calculate the magnitude of the gravitational force exerted on a 445-kg satellite that is a distance of 1.77 earth radii from the center of the earth.
(b) what is the magnitude of the gravitational force exerted on the earth by the satellite?
(c) determine the magnitude of the satellite's acceleration.
(d) what is the magnitude of the earth's acceleration?

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

The diagram shows four locations in the electric field of a positive point charge m. at which location is the electric potential the greatest.