The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases from 23 to 61 db. what is the ratio of the final sound intensity to the original sound intensity?

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

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

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.