Ahmad gets pulled over for speeding on vacation in Paris. This speed limit says 130km/hr ... but Ahmad knows he was only driving 95mi/hr. Was he speeding? Prove with calculations (you need to use the metric system for this question)

What has to happen for momentum to be conserved

If someone said that instruments that produce sounds via vibrating columns of air are called aerophones, would that be a true or false statement?

An operating electric circuit consists of a lamp and a length of nichrome wire connected in series to a 12 - volt battery.

What is the chemical formula of a compound that is composed of ions ca2 + and br-

John walks to school in the morning then walks home for lunch. The school is 250 meters directly north of his house. After lunch, he goes back to school and then to a friend's house that is 550 meters south of the school.

The portion of a light ray that falls on a surface is a/an

Give the definition for diffusion. (A) gas molecules mix unequally average distance between collisions (B) gas molecules escape from a container into a vacuum through a small hole (C) gas molecules mix equally (D) gas molecules spread out in a

As resistance goes up, what happens to the current?

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.

When are you most aware of your motion in a moving vehicle: when it is moving steadily in a straight line or when it is accelerating?