a drum crane whirlwinds in 100m of cable when raising a load of 240N through a height of 10m an effort of 30 000 N is needed Calculate the efficiency showing how you obtained your answer

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain