A girl whirls a rock is a horizontal circle of diameter 5.2 m and at height 8.56 m above level ground. The string breaks and the rock flies off tangentially and strikes the ground after travelling a horizontal distance of 23.52 m. What is the magnitude of the centripetal acceleration of the stone while in circular motion?

Ahorizontal wire is tied to supports at each end and vibrates in its second-overtone standing wave. the tension in the wire is 5.00 n, and the node-to-node distance in the standing wave is 6.28 cm. (a) what is the length of the wire? (b) a point at an anti- node of the standing wave on the wire travels from its maximum upward displacement to its maximum downward displacement in 8.40 ms. what is the wire's mass?

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane