Which point on the wave shows a wavelength measured from the beginning of one rarefaction to the
beginning of the next rarefaction?
Hint: The wave
is traveling to
the right
w
A. A
В. В
D D

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.

What is friction? how does it affect the motion of an object?