Why is the amount of mechanical energy produced less than the amount of electrical energy used?

How much force would it take if you push a 1000 kg car with the acceleration of 0.5 m/s/s? a. 2 N b. 60 N c. 500 N d. 2000 N

Who founded Electronic Arts? O A. Nolan Bushnell O B. Steve Russell OC. Trip Hawkins O D. Gregory Yob

An archer draws his compound bow and shoots an arrow. The 23 g arrow leaves the bow with a velocity of 88 m/s. The power stroke of the bow is 57 cm; that is, the bowstring exerts force on the arrow through a displacement of 57 cm.

What role does gravity play in the universe

The planet Pluto is 39.5 AU's from the sun. How long does it take to go around the sun once.

A bicycle racer sprints near the end of a race to clinch a victory. The racer has an initial velocity of 12.1 m/s and accelerates at the rate of 0.350 m/s2 for 6.07 s. What is his final velocity?

The current in a wire increases from 5 A to 10 A, what happens to its magnetic field? The field is twice as strong the distance of a charged particle from a wire changes from 10 cm to 20 cm, what happens to its magnetic field?

At a constant pressure and a temperature of 280 K, the gas in a cylinder has a volume of 10.0 liters. If the volume of the gas is increased to 20.0 liters, what is the new temperature? 2800 K 28 K 140 K 560 K

what must be the distance between source of sound and mountain to give an echo in 5 seconds?, (speed of sound at 0°c=33m/sec

What is the speed of a 50 g rock if its de Broglie wavelength is 3.32 x 10?