A machine uses an input force of 200 newton to produce an output force of 800 newton. What is the mechanical advantage of this machine

What is 20.0 m/s for 10 mi

If an object repels from another negatively charged object, the first object is

8. During the last few kilometers of a marathon, runners play mental games to test each other out. They accelerate to see if the other runners will accelerate also. If a runner has a velocity of 5 m/s and accelerates to 5.

a body that has a mass of 0.04 k g is thrown up with a speed of 60m/s. Kinetic energy? a) in the begining, b) after 6 seconds

The average mass of an automobile is about 1.440 x 10^6g. Express the mass in kilograms

If an astronomical light source were moving toward us, then what would be observed? (a) a blue shift (b) a shift toward longer wavelengths (c) a shift toward lower frequencies (d) a sonic boom

How much work must you do to push a 12 kg block of steel across a steel table at a steady speed of 1.3 m/s for 7.6 s? the coefficient of kinetic friction for steel on steel is 0.60?

An Archer needs to hit a bull's-eye On Target at eye level of 60 feet away is the Archer fires the arrow from the eye level with a speed of 47 ft/s at an angle of 25 degrees above the horizontal, will the arrow hit the target

What type of wave is a sound wave A. transverse wave B. longitudinal wave C. light wave D. elctromatic wave

Na+/k+-atpase is considered to be an electrogenic pump because