determine the distance covered by a body in 4.0s if it's initial velocity, u is 20m/s and acceleration, a is 4.0m/s^2 .​

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping.the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?