Which energy source is renewable? @4.3.8.a @1

a)
oil

b)
solar

c)
coal

d)
natural gas

When someone slams her books on a table the kinect energy is transferred into vibrations that travel to your ears as sound waves which statement describes the movement of those waves

During takeoff, the sound intensity level of a jet engine is 170db at a distance of 34 m. what's the sound intensity level at a distance of 1.0 km?

What kind of simple machine is a catapult?