If you use a marble of radius 11 mm for mercury, how far from the sun must you place your outermost planet? express your answer with the appropriate units.

How far will the cow travel in 35 seconds?

Give one advantage and one disadvantage of using nuclear power stations rather than gas-fired power stations to generate electricity.

Two identical rocks are dropped from different heights. The higher one starts out four times as high as the lower one. How much faster is the higher one going just before they hit?

When all parts of a circuit are composed of conducting materials, the circuit is said to be A. shorted. B. closed. C. parallel. D. open.

An amateur astronomer is looking through a telescope and observes a planet with few moons, no rings, and a cratered surface. what is he most likely observing?

What percentage of North American adults may be functioning below their potential due to prolonged exposure to stress

Give a example of frequency which an elephant can hear and a tiger cannot hear include a unit in ansawer

Why do you keep moving forward when you slam on the brakes of your bike?

a motorcycle begins at rest and accelerates uniformly at 7.9 m/s2. We want to find the time it takes the motorcycle to reach a speed of 100 km/h. Which kinetic formula would be most useful to solve for the target unknown?

When a covalent or an ionic bond is formed a chemical change has occurred. Which of these is not associated with a chemical change? A) The atoms of the substance produced have been rearranged.