A satellite orbits the Earth 200 km above the surface. Assume the radius of the Earth is 6400 km and GM = 3.986 X 1053/2 (a) What speed, in m/s , is necessary for a circular orbit?
(b) What is the orbital period of the satellite (the time it takes to make one revolution around the Earth) in minutes?
(c) Critical Thinking: If the satellite was in a higher altitude orbit around the Earth, would it travel faster or slower? (1 point) Why?

A block is sliding down an incline of 60 degrees as shown in the figure below. The coefficient of friction,
μ , of the surface of the incline plane is 0.3. The frictional force is = μ where is the normal force. The weight of the block is W. Assume the acceleration due to gravity is 9.8 m/ 2
(a) Provide the expression for the component for the Weight force in the direction along the incline plane.
(b) Provide the expression for the component for the Weight force in the direction perpendicular to the incline plane.
(c) Provide the expression for the normal force in terms of W.
(d)Provide the expression for in terms of W.
(e) Provide the equation for the sum of the forces in the direction along the incline plane (include appropriate signs).
(f) Provide the equation for the sum of the forces in the direction perpendicular to the incline plane (include appropriate signs).
(g) What is the value for acceleration of the block along the incline plane?
(h) How far (in meters) will the block slide in 10 seconds if it is released from rest?