Explain why a fast moving freight train cannot be stopped quickly

If F2 has a mass of 400 grams and is placed 20 cm from the fulcrum, where does F1 that has a mass of 200 grams need to be placed in order to have the board balance? A. 40 cm from the fulcrum B. 40 cm from the end of the meter stick C.

When electrons are removed from the outermost shell of a calcium atom, the atom becomesA. an anion that has a larger radius than the atomB. an anion that has a smaller radius than the atom. C. a cation that has a larger radius than the atom. D.

A wheel of mass 60.0 kg is pushed with a net force of 26.4 N. Find acceleration.

Which of the following is most likely to be a secondary source? A. A scientific paper B. A scientific lecture C. A journal article D. A Magazine story

Which of these is the best example of translational motion? A. a coin spinning on a desk B. a leaf blowing across the field C. a car in a parking lot with its engine running D. a ballerina standing on one foot

How does acceleration affect speed and velocity

What will not result in acceleration

Magma from a volcano is considered a fluid because it can flow and it exhibits viscosity true or false

If you lift the front wheel of a poorly maintained bicycle off the ground and then start it spinning at 0.69 rev/s, friction in the bearings causes the wheel to stop in just 13 s. If the moment of inertia of the wheel about its axle is 0.

Why is it warmer near the equator than near the poles?