The "atomic weight" of an atom reflects the average number of

A) protons.

B) neutrons.

C) electrons.

D) protons + neutrons.

E) protons + neutrons + electrons.

A thunderstorm starts to form when water evaporates to form clouds. Which of the following best explains why thunderstorms usually form on warm days?

Calculate the kinetic energy of 1,400 kg roller coaster car that is moving with a speed of 12 m/s when it reaches the bottom of the hill.

Two like charges are separated by some distance. Describe the quantitatively what will happen to the force exerted by one charge on the other ifa) the distance between the charges is doubledb) the distance between the charges is halvedc) one of the

what is physical fitness? 1) the improvement of the body through inteninoal movement 2) the speed at which the body moves during exersize 3) the ability of the body to function of the body to function efficiently during exercise D) the preformence

A ball is thrown in the air with a vertical velocity of 12 m/s. (a.) How long does it take to get to the top of its flights? (b.) What is the average velocity of the ball on the way to the top? (c.

Theme of Throne of Glass?

How much kinetic energy does a car have if it is traveling with a velocity of 50 m/s and has a mass of 1440 kg.

What can student do to increase the force of attraction of magnet on the iron (metal) block?

A quarterback throws a football with angle of elevation 40degrees and speed 60ft/s. Find the horizontal and vertical components of the velocity vector

What type of bond results from the side‑on overlap of orbitals?