Billy is sitting in a chair in class. If the action force is the downward push of his weight on the chair, what is the reaction force?

What is the name of the units that are normally used to measure energy?

A uniform diameter rod is weighted at end and is floating in a liquid. Determine if the liquid is (a) lighter than water, (b) water, or (c) heavier than water. Justify your answer.

The minute hand of a large clock is 0.50 m long. (A) Calculate its linear speed at its tip in meters per second. (0.000873 m/s) (B) Calculate the centripetal acceleration of the tip of the hand. (1.52 x 10-6 m/s2)

What is the resultant of two displacement vectors having the same direction? a. The resultant is the sum of the two displacements having the same direction as the original vectors. b.

Nani conducts an investigation on plants. She places a grow light on a time to give the plants different amounts of light to see if this would effect their growth. In this investigation, the amount of light is the

The steps in the formation of sedimentary rocks are listed below in an incorrect order. 1. Rocks are weathered. 2. The sediments are compacted together. 3. They are deposited in layers. 4. Small pieces of rocks are carried by water.

Which method would you use to find the volume of an irregular shaped object?

A step up transformer has a primary coil with 100 turns and a secondary coil with 25 turns if the input voltage in the primary coil is 40 volts what is the output voltage reduced to in the secondary coil A) 20 volts B) 35 volts C) 4 volts D) 10

An instrument used to measure atmospheric pressure is called a

A 200-kg boulder is 1000-m above the ground. what is its potential energy?