A sound wave is made of a series of compressions and

a.

extensions.

c.

rarefactions.

b.

volumes.

d.

refractions.

When sea ice melts, the darker ocean surface that is revealed absorbs more solar radiation, which in turn causes warming and melts more ice, which in turn creates a greater area of darker ocean surface. What is this process called?

If the kinetic energy possessed by a man of 50kg is 625J, the speed of man is

In terms of density and humidity, which conditions characterize a high-pressure area? A. high density, high humidity B. high density, low humidity C. low density, low humidity D. low density, high humidity

A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1180 Hz. The bird-watcher, however, hears a frequency of 1260 Hz. What is the speed of the bird, expressed as a percentage of the speed of sound?

In order for a current to be maintained through a conductor a difference in must be maintained from one end of the conductor to the other end. potential power resistance conductivity

What is the net force acting on a 10 kg freely falling object?

A comet is a A. meteoroid that travels through Earth's atmosphere and hits the surface. B. meteoroid that burns up in Earth's atmosphere, producing a streak of light. C.

Can Someone explain the steps for this? A lovesick lad wants to throw a bag of candy and love notes into the open window of his girlfriend's bedroom above. Assuming it just reaches the window, he throws the love gifts at 16.

Which substance is a combination of different atoms?

If there are many forces acting on an object, how can the net force be 0: