A satellite is sent into orbit around the Earth, In which of the following situation would the gravitational force be the greatest?

A -850 lb satellite orbiting 150 miles above Earth’s surface

B -850 lb satellite orbiting 1500 miles above Earth’s surface

C -1200 lb satellite orbiting 150 miles above Earth’s surface

D- 1200 lb satellite orbiting 1500 miles above Earth’s surface

PLEASE PLEASE PLEASE ANSWER IM GIVING UP 20 POINTS THIS IS FOR A GRADE IN 10 MINUTES

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc