2. Cause and Effect Suppose that an electric
current flows in a straight wire. The current
changes so that it flows in the opposite
direction. What changes occur in the magnetic
field, and what stays the same?

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?