monusarpanchrejri

A die is rolled, find the probability that an even number is obtained.

A small block on a frictionless, horizontal surface has a mass of 0.021kg.0. It is attached to a massless cord passing through a hole in the surface. The block is originally revolving at a distance of 0.3 m from the hole with an angular speed of 2.33 rad/s. The card is then pulled from below shortening the radius of the circle in which the block revolves to 0.150m. what is the new angular speed?

What is a cell