Um armário com o peso 800 N é colocado sobre uma superfície, ocupando uma área correspondente a20 000 cm. Calcula a pressão exercida pelo armário sobre esta superfície, em unidades do Sistema Internacional

How will the system respond to a temperature increase?

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.