1. Now Little Susie and the Purple Playground Rhinoceros are racing to see who is faster. They hang a string across the hallway with tape 6.75 meters from the starting line. They countdown from five and go! a. Susie's final velocity was 11.3 m/s. What was her acceleration?

If this plastic cup is heated to its melting point, what will eventually happen to all the particles in the plastic? a. the particles will begin to move enough that they slide past each other. b. bonds will form and the liquid will become a solid. c. the spaces between the particles will get smaller. d. the particles will change state and become a crystalline solid.

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.

The force it would take to accelerate an 900-kg car at the rate of 6m/s2