The speed of light is roughly 300000000 (3.0 x 108) m/s, if it takes light 8 minutes and 20 seconds to get from the sun to earth. What is the distance between the sun and earth?

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =