How do you find mechanical advantage?

What is the escape velocity from a red giant with a mass of 1msun and a radius of 150 rsun?

A 20-kg child is tossed up into the air by her parent. The child is 2 meters off the ground traveling 5 m/s.

6. A capacitor of charge 3 x 10 coulomb has a potential of 50volts. What is the capacitance of the capacitor?

What causes the cycle of solar activity? what causes the cycle of solar activity? changes in the speed of the solar wind changes in the sun's fusion rate changes in the organization of the sun's magnetic field?

A simple lie detector consists of an electric circuit, often from one finger to another. A sensitive meter shows the current that flows when a small voltage is applied. How does this technique indicate that a person is lying?

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.