Mark asks…physics question on tension and force?3. calculate the centripetal acceleration of the earth in its orbit around the sun, and the net force exerted on the earth. what exerts earths force? assume. that earths orbit is a circle of radius 1.50 * 10^11 m.
6. a .40 kg ball attached to the end of a horizontal cord is rotated in a circle of radius 1.3 m on a frictionless horizontal surface. if the cord will break when the tension in it exceeds 60 n, what is the maximum speed the ball can
