A ball is rolled off the edge of a 2 meter high table. It lands on the floor 3 meters away from the edge of the table. If another ball is released from rest at a height of 2 meter the instant the first ball rolls off the table, which ball will hit the floor first? The ball that rolled off.
The ball that was dropped.
They will both hit at the same time.
You cannot tell from the info given.

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?

In a series circuit the __ is the same at every point

The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.