A plate with a mass of 0.50 kg is dropped and has a velocity of 3 m/s when it suddenly hits the hard kitchen floor. Calculate the change in momentum in kg m/s. (Note: the final speed of the plate is, of course, zero when it hits the floor.)

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada