Apex
in an isolated system, two cars, each with a mass of 2,500 kg, collide. car 1 is
initially at rest, while car 2 was moving at 20 m/s. what is their speed after
the collision?

A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?