Do you have a lawn mower engine running for 20 minutes does 4,560, 000 J of work. What is the power output of the engine?

The ideal mechanical advantsge of a pulley system is equal to the distance the load has to move length of the rope number of rope segments supporting the load weight of the object being lifted

newton's second law states that f=m x a (force is mass times acceleration). which example would have the greatest acceleration

The quantity of electrical current in a circuit depends upon which factors? PSI switch ammeter voltage ohms

A motorcycle is capable of accelerating at 1.5 m/s2. Starting from rest, how far can it travel in 0.5 seconds? a. 0.38 m b. 0.44 m c. 0.19 m d. 0.66 m

What would be an example of chemical change that took a long time to occur

Jeff puts on a leather jacket over his sweater. The sweater becomes negatively charged. Which statements about Jeff's situation are true?

You hit the wall with a stick. The equal but opposite reaction is?

What happens to a light wave traveling through diamond that strikes a boundary with water at a 45 degree angle? (APEX) a. it refracts in the water, toward the boundary b. it reflects back into the diamond in the direction it was traveling from c.

Which tools would sara us to find an irregularly shaped objects mass and volume A. a meter stick, a ruler, and water B. a meter stick, a balance, and water C. a balance, water, and a ruler D. a balance, water, and a beaker

Scientists who study races and their origins are called A. anthropologists. B. ethnologists. C. paleontologists. D. sociologists.