Can someone help me?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

If the new moon happens on january 15th, what shape will it be on february 6th?

Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero