A man with mass 82 kg runs at a speed of 2.8 ms How much kinetic energy does he have? A. 114.8 B. 221.8 C. 321.4 D. 642.9

Identify the parts of the electromagnetic spectrum, both visible and invisible.

What are four earth spheres that contain water and identify one way that water is stored in each

A 3 kg box is being pulled along a horizontal surface with a constant force. If the force stays the same but a boxed 2 kg mass is placed on top of the 3 kg box, what will happen to the motion of the stacked boxes?

Army tank moves on broad steel track why?

A 64 kg girl is suspended motionless from a bar which hangs from the ceiling by two ropes. if both ropes are pulling with the same amount of force, how much force does each rope exert

Part 1. A girl leaves a history classroom and walks 10 meters north to a drinking fountain. Then she turns and walks 30 meters south to an art classroom. What is the girl's total distance traveled? Part 2. Using the information above from Part 1.

Which of the following is an example of a physical change but not a chemical change? A) The log gives off heat and light as it burns B) A tree stores energy from the sun in its fruit C) A penny lost in the grass slowly changes color D) A water pipe

Land masses that move on Earth are called: a. Continents b. Tectonic continents c. Tectonic plates d. Rock Masses

Will two separate 50db sounds together constitute a 100db sound explain mathematical

How many miles is the moon from the earth