An acorn falls from rest from the top of a 21 m tall oak tree. A. How long does it take for the acorn to fall to the ground? B. How fast is the acorn going before it hits the ground?

If you were on the open ocean on a large ship, how could you determine the height of a wave?

A ball is dropped from an upper floor, some unknown distance above your apartment. As you look out of your window, which is 1.5 m tall, you observe that it takes the ball 0.18 seconds to traverse the length of the window.

State the principle of transmission of pressure in liquids

Water flows at a rate of 0.25 kg/sec in a 2.5 cm diameter tube having a length of 3m. Constant heat flux is imposed at the tube wall so that the tube wall temperature is 40C higher than the water temperature.

A ventriloquist is able to convince you that words are coming from his dummy's mouth because the dummy's mouth movements match the timing of the words actually coming from the ventriloquist.

What is the rule of calculation of elastic potential energy?

In 1940, the Tacoma Narrows Bridge across the Puget Sound collapsed. The bridge was a suspension bridge. The wind blowing through the narrows matched the natural frequency of the bridge.

What has more momentum: a sports car moving at 100 mph or a train that is not moving?

What is your mass in kilograms?

The dimensions of a block that weighs 30 N are 0.23 mx 0.12 mx 0.075 m. What pressure does the brick exert on the ground if it is resting on its largest face?