Explain why the stars look different between Jane and John

A horizontal tube consists of a pipe that narrows to a 2.0-cm-diameter throat. In the pipe, the water pressure is twice atmospheric pressure and the water flows with a speed of What is the pressure in the throat, assuming that the water behaves like

Which one of the following is the weakest electrical conductor? A. a sheet of aluminum foil B. a cup of orange juice C. a metal lunchbox D. a rubber ball

Explain why elements in the same family have similar physical and chemical properties

1. A 0.828-nm photon collides with a stationary electron. After the collision, the electron moves forward and the photon recoils backwards. a) Find the momentum of the electron. b) Find the kinetic energy of the electron.

What will happen if there is a change in a magnetic field?

1. a) What is the weight of a 20.0 kg girl on earth?

A group of barbarians are trying to turn a large wheel and axle to grind grain. What can they do to move the wheel with less effort?

If you wanted the pitch of a horn to drop relative to an observer, which way would you move the horn, relative to where that observer is located? A. Leave it in the same place and play the horn more softly B. Away from the observer C.

What do Babys Come From

How are the magnets able to have zero resistance