Which of the following is not a chemical that can be created by chemists?

O

A. Plastic

O

B. Helium

O

C. Sodium

O

D. Gasoline

Mounted to the stub on the end of the crankshaft are two pieces of metal with a layer of rubber in between called the

Item 16 The weight w (in pounds) of an object varies inversely with the square of the distance d (in miles) of the object from the center of Earth. At sea level (3978 miles from the center of Earth), an astronaut weighs 210 pounds.

7. Mildred was driving 12 m/s and slowed to 8 m/s in three seconds. Mildred's acceleration can be calculated as: 0 0 ID 111111 0 0 1223 33

Describe the experimental basis for believing that the nucleus occupies a very small fraction of the volume of the atom

What are the basic primitive solids?

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?

The force of gravity on a person or object on the surface of a planet is called?

What happens to the particles of the liquid inside a thermometer when the thermometer is heated? They slow down and spread apart. They speed up and spread apart. They slow down and move closer together. They speed up and move closer together.

You did 150 joules of work lifting a 120 - N backpack. how high did you lift the backpack? how much did the backpack weigh in pounds