What is the approximate size of the smallest object on the earth that astronauts can resolve by eye when they are orbiting 250 km above the earth? assume λ = 500 nm and a pupil diameter of 5.00 mm?

Suppose a person whose mass is m is being held up against the wall with a constant tangential velocity v greater than the minimum necessary. Find the magnitude of the frictional force between the person and the wall

What holds the atoms together in a covalent bond

A 5.09 * 1014-hertz electromagnetic wave is traveling through a transparent medium. The main factor that determines the speed of this wave is the

How long does a ship take to cross the pacific?

Which expression is a measurement of density? 5.2 cm 3 0.71 mg 20 g/cm 2 5.13 kg/l?

What kinds of space and matter can light travel through?

A capacitor is connected to a power source and begins charging. What causes the capacitor to stop charging while it is still connected to the power source?

Do the data for the second part of the experiment support or refute the second hypothesis? Be sure to explain your answer

The capacitance of a parallel-plate capacitor does not depend on: area of the plates medium between the plates distance between the plates the material of which the plates are made

Which sequence lists types of material in order from least conductive to most conductive