A satellite of mass 230 kg is placed into Earth orbit at a height of 150 km above the surface. (a) Assuming a circular orbit, how long does the satellite take to complete one orbit

How are calculation for velocity and speed different

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane