A high amplitude sound wave can best be compared to a short hill.
tall hill.
tightly coiled spring.
stretched-out spring.

Simple machines can a. increase force only b. decrease force only c. increase or decrease force

Explain why you think this diagram shows what happened to the carbon in the biodome.

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.