A50.0 kg child takes a ride on a ferris wheel that rotates with a tangential speed of 1.2 m/s. find the centripetal force that maintains the circular motion of the child if the distance from the center of the ferris wheel is 16.0 m.

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

Why should seat belts not be mandatory quick plz

Avertical clean glass piezometer tube has an inside diameter of d = 1 mm and is used to measure pressure in a horizontal pipe carrying water as shown. due to pressure in the pipe, the water at 20c rises into the tube to a height h. if the water pressure in the pipe is p = 500 pa gauge, estimate the height h: (a) without considering surface tension (b) with surface tension (capillary) effects. the contact angle  can be assumed at 30 deg