What correctly describes mechanical advantage

A uniform bridge span weighs 70 x 10^3 N and is 40 m long. An automobile weighing 15 x 10^3 N is parked with its center of gravity located 15 m from the right pier. What upward support force does the right pier provide?

Which of these characteristics did all of the five waves of immigrants have in common A. They all had the same political beliefs B. They all spoke English C. they all valued education D. They all had the same religious beliefs

A ball is tied to a string and whirled in a horizontal circle at a constant 4 revolutions per second. Categorize the following according to whether they are 0 in value, constant in value, or change:

A heavy rope, 80 ft long and weighing 32 lbs, hangs over the edge of a building 100 ft high. how much work w is done in pulling the rope up 20 ft?

2. Sublimation is the process of changing of liquid to solid.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.