When traveling from a solid to air what would you expect a sound wave to do a. stay the same speed b. speed up c. fluctuate speed d. slow down

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

Thomas his older brothers, who own a junk yard, on the weekends to earn extra money. he likes to them push broken-down cars to the back of the junk yard because it makes him feel strong. last saturday, they pushed three cars with different weights, and he noticed he used different amounts of force for each one. the cars were the following weights: white car: 2,700 kg red car: 1,500 kg blue car: 2,100 kg think about how much force is needed to move each car. which correctly lists the cars in order from the most to least amount of force needed to move them? a) white, blue, red b) blue, red, white c) red, white, blue d) white, red, blue

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?