A runner travels 20 miles in 5 sec and then travels another 80 m in 15 sec what is his average speed? Explain

The sun's energy results from what?

What is the difference between alternating current and direct current? A. Alternating current regularly reverses direction. Direct current flows in only one direction. B. Alternating current flows in only one direction.

BC Inc. custom makes furniture. It has 20 workers who produce 135 units per quarter each. The cost per unit is $2500.00. If a pure chase strategy is used, how many workers are fired or hired during quarter 2? Be as close as possible.

Momentum is what kind of quantity?

Which of the objects a. a book b. the nearest star c. the sun d. a distant galaxy exert (s) a gravitational force on you?

Explain how atoms are aligned in a magnet in terms of the North and South poles.

Which of the following has the largest gravitational potential energy A. a 10kg dog running down the street at 30mph B. a tightrope walker slowly crossing niagara falls C. a 0.02kg bullet moving down the barrel at 800mph D.

Why does the speed of an object change when a force acts on it?

What are factors that would change the position of the wave lengths measured? (There are more than one answer.) a) size of the tube b) tuning fork frequency c) distance between the tuning fork and tube d) room temperature e) area of the tube

This particle is found in the nucleus and adds mass to the nucleus, but changing its number does not change what the element is. This particle is the A. proton. B. photon. C. neutron. D. electron.