Who is credited with being the first person to accurately determine earth's circumference?

Which are advantages of renewable resources? Check all that apply. Renewable energy supplies are completely reliable everywhere. Some renewable resources will never be used up. Little or no waste is produced by renewable resource plants.

A ball is kicked horizontally, at 16.8 m/s, from the edge of a bridge over a smooth flowing river. It lands on the water at a distance 30.7 m from the edge of the bridge. How high is the bridge? Assume a gravitational acceleration of 9.

An x-ray beam with wavelength 0.240 nm is directed at a crystal. as the angle of incidence increases, you observe the first strong interference maximum at an angle 24.5 ∘. what is the spacing d between the planes of the crystal?

What is the function of inductor

When powdered iron is left exposed to the air, it rusts. explain why the mass of the rust is greater than the mass of the powdered iron?

An airplane in flight has a pressure difference between the lower and upper wing surface; this provides an upward force that balances the weight of the plane.

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Why does momentum have a direction?

What is the difference between weight and mass?

An object has a mass of 8.00 kg. What is the gravitational force on the object by the earth?