Equations for motion with constant acceleration
A pebble is dropped down a well and hits the water 1.1s later. Using the equations for motion with constant acceleration, determine the distance from the edge of the well to the water's surface.
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Three resistors with a resistance of 12 ohms, 8 ohms, and 24 ohms are in a series circuit with a 12 volt battery.
Two identical loudspeakers are 3.2 m apart. A person stands 5 m from one speaker and 4.2 m from the other. What is the lowest frequency at which destructive interference will occur at this point? The speed of sound in air is 343m/s in Hz.
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A steel tank contains a large quantity of compressed air. When the tank is submerged for an hour in a cold-water tank, the air loses 245 J of heat to the water. What is the change in the internal energy of the air?
A material contains 50.0 grams of carbon 14, and is 300,000 years old. It has a half life of 5730 years. What was its original mass?
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