A lever has a total length of 12 meters with a fulcrum at the exact center of the lever. Which best describes how to double the mechanical advantage of the lever?

A 5 kg ball approaches a wall at a speed of 4 m/s. It then bounces off the wall in the opposite direction at the same speed. What is the magnitude of the average force exerted on the ball if it is in contact with the wall for 0.1 s?

Write the formula for kinetic energy that uses force in its equation. Calculate the kinetic energy generated when a 2500 N force is applied to a car when moving it 200 m. Show work.

Which song form has alternating repetitions of a main theme which two or more contrasting sections? 1. rondo 2. ABA form 3. AB form 4. sonata form music

Ten narrow slits are equally spaced 3.00 mm apart and illuminated with indigo light of wavelength 444 nm. The width of bright fringes can be calculated as the separation between the two adjacent dark fringes on either side.

Starting from rest, how long does it take a moving man to reach a velocity of 5 m/s if his acceleration is + 1.75 m/s2?

Nanotechnology and microtechnology devices are both very tiny. However, one property of nanotechnology distinguishes it from microtechnology. What is this unique property? Nanotechnology can create new products.

Can an electron be found in an exact spot within an atom

In an ecosystem, why can only one species fill an ecological niche?

The speed of an object and the direction in which it moves constitute a vector quantity known as the velocity. an ostrich is running at a speed of 14.0 m/s in a direction of 54.0 ° north of west.

Adding or removing protons from an atom does what to the atom