A 10 - kg bag of sand has a weight of 98 N. When dropped, what is its acceleration?

What is the input of a person pulling a rope 20 meters with a force of 200 N

A 10.0-µF capacitor is charged so that the potential difference between its plates is 10.0 V. A 5.0-µF capacitor is similarly charged so that the potential difference between its plates is 5.0 V.

The Great Lakes of the United States are often covered with a sheet of ice every winter. Which best explains why this ice does not sink to the bottom?

A object of mass 33 is dropped from a height of 85 meters. Calculate the average power developed by the object in falling through this distance. Take g as 9.81 m/s^2 give the answer in watts to three significant figures

It is extremely difficult to play, record, and hear live music in a park or other open space. explain why this is so. Use the word reverberation in your answer.

Scientists can find the absolute age of a rock by using a uranium 235 dating b carbon 14 dating c carbon 12 dating d relative dating

What do scalars measure force acceleration magnitude velocity

Why do metals differ in specific heat? why is Al much higher than gold

Witch kind of force do you exert on an object when you pull towards you A-Applied force B-Attractive force C-Drag force D-Normal force

a solid sphere is rolling without slipping along a horizontal surface with a speed of 5.5 meters per second when it starts up a ramp that makes an angle of 25 degrees with the horizontal what is the speed of the sphere after it has Road 3M up the