Some students conduct an experiment to prove conservation of momentum. They use two objects that collide Measurements are taken before and after the collision.

Which two quantities will the students multiply together before and after the collision?

A. mass and velocity

B. distance and time

C. mass and acceleration

D. velocity and time

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m. the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

Which of the following is not am example of a polymer? protein nylon kevlar concreta

How do we measure or think of speed in the united states?