Two blocks of mass mA and mB are connected to each other and to center O by ropes as shown in the figure. The blocks rotate around center O with the same frequency f (revolutions per second) on a horizontal frictionless plane at distances rA and rB. Find the expression for the tension on each segment of the rope.

The slope of a velocity time graph over any interval of time gives the during that interval

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)