An object is connected to a spring and moving in uniform circular motion such that the spring connects to the object on one end and to the center of rotation on the other (like a rope or pole, but it's a spring). The object has mass 15 kg, and is moving at constant velocity of 10 m/s in a circle. How far will the spring expand if it has a spring constant of 1.5

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.

Explain in physical terms how a microwave oven works. what would happen when you put a conductor in the microwave oven? explain.

Ahowler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 4.6 km. assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 w/m2. what is the acoustic power emitted by the howler