0.095kg is going in a circle on a horizontal frictionless surface. It is held in its orbit by 0.65 s (10%) Problem 1: A puck of mass m = massless string of length L 0.85 m. The puck makes one revolution every t 50% Part (a) What the magnitude of the tension in the string, F, in Newtons, while it spins? 50% Part (b) The string breaks suddenly. How fast does the puck move away, v in m/s?

Abatter hits the baseball a with an initial velocity of v0 = 110 ft/sec directly toward fielder b at an angle of 23° to the horizontal; the initial position of the ball is 2.2 ft above ground level. fielder b requires 0.44 sec to judge where the ball should be caught and begins moving to that position with constant speed. because of great experience, fielder b chooses his running speed so that he arrives at the “catch position” simultaneously with the baseball. the catch position is the field location at which the ball altitude is 8.4 ft. determine the velocity of the ball relative to the fielder at the instant the catch is made.

Suppose that three astronomical objects, 1, 2, and 3 are observed to lie on a line, and the distance from object 1 to object 3 is d. object 1 has four times the mass of object 3, and seven times the mass of object 2. find the distance between objects 1 and 2 for which the net force on object 2 is zero.

What is the role of the water cycle in maintaining freshwater levels in lake and rivers?