The ratio of output power yo input power, in percent, is called

Each liter of air has a mass of 1.80 grams. How many liters of air are contained in 2.5x10 to the third power kg of air?

Juan Formababee runs at a speed of 17 mi/hr. How long will it take him to run 13.6 miles?

An orange is placed on a table in a completely dark room, without any source of light. Which of the following choices correctly describes what an observer will see as he looks in the direction of the orange?

The steering wheel of a certain vehicle has a diameter of 34.6 cm, and it turns a shaft that is 8.9 cm in diameter. If a 94.8 N force is needed to turn the steering wheel, what torque is exerted on the wheel

Argue as to why drivint on icy or snowy roads can be dangerous

On a frictionless surface, a 32 kg student pushes a 43 kg student. If the 32 kg student slides back at 2.4 m/s, how fast will the 43 kg student be sliding and in what direction?

The 100 meter dash is a quick and short run requiring explosive speed. on completion of the dash the runners will continue to breathe hard for several seconds to minutes even though they are no longer running.

If the distance between the two mass double what happens to the gravitational force

Determine the amount of work done when a crane lifts a 100-N block form 2m above the ground to 6m above the ground

Explain the force that keep the rock balanced on its tiny pedestal