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

A) protons.

B) neutrons.

C) electrons.

D) protons + neutrons.

E) protons + neutrons + electrons.

The device shown is used for lifting 55-gallon drums. determine the magnitude of the force exerted at b.

The force of gravity typically acts in a downward direction on the object on earth when an object is standing still, on the flat ground, in what direction does the support or normal force act?

An object accelerates from rest at a rate of 2m/s2. What will its velocity be after 4 seconds?

What information do you think the temperatures of stars give us?

Do the math for 30%:75

Hot air balloon rises because a) molecules become lighter when heated b) molecules move faster and farther apart when heated c) molecules are less attracted by gravity when heated d) molecules become charged and repel each other when heated

If the diameter of the space station is 730 m, how many revolutions per minute are needed for the "artificial gravity" acceleration to be 9.80m/s2?

A person who has dissociative identity disorder: O A. cannot remember who he or she is. O B. has panic attacks when confronted. C. has two or more distinct personalities OD hears voices

Which force most likely created this mountain? compression gravity sheaning tension

What is the opposition of sublimation?