The Earth has a mass of 6* 1024 kg and orbit the Sun in 3.15 107 seconds at a constant radius of 1.5 101 m. Find the following: 1) What is the Earth's centripetal acceleration around the Sun? 2) What is the gravitational force acting between the Sun and Earth? 3) What is the mass of the Sun? In the figure shown, the pulley is frictionless and massless. Find the following mi e 1) Accelerate up the ramp. 2) Slide up the ramp at constant speed. m2 1) If the surface of the inclined plane is frictionless, determine what values of angle (0) will cause the box of mass mi to the following: 2) If the coefficient of kinetic friction between the surface of the inclined plane and the box of mass mi is , derive (but do not solve) an equation satisfied by the value of e, which will cause the box of mass mi to slide up to the ramp at constant speed.