A 5.0 kg crate slides down a smooth ramp that is elevated at an angle of 38 degrees. The length of the ramp is 2.0 m. What will be the speed of the crate at the bottom of the ramp?

Hydrogen and helium are both members of?

Aplayer uses a hockey stick to push a puck at a constant velocity across the ice. the weight of the puck is 170 n. the coefficient of friction is 0.0600. with what force must the player push the puck so that his force just equals the frictional force? 28.3 n 0.999 n 0.102 n 0.0104 n

Aplane's average speed between two cities is 600 km/h. if the trip takes 2.5 hours, how far does the plane fly?