A child wearing socks is trying to see how far he can slide across his kitchen floor. If he has a mass of 48 kg and the coefficient of friction between him and the floor is
0.51, how far can he slide with an initial velocity of 7.8 m/s?

What are similarities and differences of reflection, refraction, diffraction and absorption?

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.

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?