Which of the following is an example of potential energy?
a. a bird positioned on the edge of a high cliff
b. a bike driving down the road
c. a dog eating dinner
d. a rock rolling on the ground through the air

Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.

What is a carrier wave and how does it affect what you hear on the radio

Both speed and velocity measure how fast something is moving. however, since speed is not a it does not require a(n question 6 options: a) quantity , unit b) magnitude, unit c) scalar, direction d) vector, direction