The small box is started with an initial tangential velocity of 9.4 m/s in the direction towards to top of the spherical dome at an initial angle of 39 ◦ with other conditions the same. find the critical angle at which the box leave the surface of the dome. answer in units of ◦ .

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?

How does changing the frequency affect the energy of the wave?

The height of the empire state building is 318 m if a stone is dropped from the top of the building what is the stones velocity just before it strikes the ground