If the unit for force is f, the unit for velocity is v and the unit for time t, then the unit for momentum is

Three pithballs are suspended from thin threads. Various objects are then rubbed against other objects (nylon against silk, glass against polyester, etc.

In the diagram, ∠D is b A) the angle of incidence B) the angle of refraction C) the complement of the angle of reflection D) the complement of the angle of refraction described as which of these?

A cannonball of mass 15 kg is fired vertically upward from a cannon with an initial speed of 20 m/s. The cannonball travels upward, reaches a maximum height of 40 m, and returns to the ground.

What is final velocity of a 400kg car traveling at 36m/s that undergoes a braking force of 600N for 8 seconds

What phenomenon causes colors of visible light to be separated by a prism?

a worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object

Discuss how electric current is able to flow.

What techniques allow us to identify the presence of different elements?

A small piece of dust of mass m = 4.1 µg travels through an electric air cleaner in which the electric field is 466 N/C. The electric force on the dust particle is equal to the weight of the particle.

a race car driver must average 203 km/h over the course of a time trial lasting ten laps. If the first nine laps were done at 199.0 km/h what average speed must be maintained for the last lap?