Which of the following particles was discovered by Ernest Rutherford?

a. neutron

b. proton

c. electron

d. quark

Newtons first law of motion states that the velocity of an object doesn't change if the forces acting on the object are

Kinematics in 1D [4B. R]:Question 3 An object can be accelerating if the magnitude of its velocity is constant only if:

Which best summarizes a concept related to the work-energy theorem?

Human populations all over the world burn fossil fuels to power cars, planes, and generate electricity. Select the statement that best describes the long-term global effects of this behavior. A.

What is the relationship between electric currents and magnetic fields?

Kai was 200 meters north of the library when he remembered he had to return some books to the library. It took him 200 seconds to do the round trip. Which best describes Kai's roundtrip?

The engine that powers a crane burns fuel at a temperature of 1500 oC. It is cooled by air at a temperature of 20 oC. The crane is used to lift a 1000 kg steel girder 30 m into the air.

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?