If the output force is greater than the input force of a simple machine, the

mechanical advantage is less than one.

A. True

B. False

The greater the surface area of a piece of fission material, the A. less likely an explosion B. more likely an explosion C. Neither A nor B; mass, rather than surface area is significant D. None of the above Select an answer

What is the smallest gravity in solar system?

Why is steel better to conduct sound than air? use the words density and compression in your answer

If you cut a metal cube into four pieces, do the new pieces have a different mass than the original cube? Do the new pieces have a different density than the original cube?

Two very small spheres are initially neutral and separated by a distance of 0.66 m. Suppose that 5.7 * 1013 electrons are removed from one sphere and placed on the other.

Why do scientist use radioactive decay to figure out how old stuff is

The power of a machine measures A. its rate of doing work. B. its strength. C. the force it produces. D. the work it does.

the acceleration of gravity is 28 times on sun than earth. Imagine there is a space suit that let you stand on sun. Calculate the weight of 100 kg person on earth in newtons

A force of 20 n acts upon a 5 kg block, calculate acceleration of the object

What resultant force is needed to accelerate a train of mass 3.41000000 kg from rest to 15.0ms in exactly 20s