Object A travels at a constant velocity of 2.0 m/s right, and object B travels in the same direction at a constant velocity of 3.0 m/s. If object B starts 1.0 min after object A from the same position, how
many seconds will it take object B to catch object A?

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?

The basketball coach tells his team to run sprints back and forth across the court, which is 30 m long. they start at the left end of the court, run back and forth 6 times, then end back at the left end of the court where they began. what distance did they run? what is their displacement?