When the number of protons and electrons are the same the atom is

A. neutral.

B. charged.

C. balanced.

D. unbalanced.

Name two important differences between light waves and sound waves What is the equation that represents the law of reflection? What is the difference between Fresnel diffraction and Fraunhoffer diffraction?

An element's atomic number is 92. How many protons would an atom of this element have?

An astronaut has two objects that are identical in all respects, except that one is painted black and the other is painted silver. Initially, they are at the same temperature.

With a naked eye your are unlikely to see a "blank" in your lifetime. A - Comet. B - Shooting Star. C - Meteor. D - Planet.

A novice skier, starting from rest, slides down a frictionless 36.0 ∘ incline whose vertical height is 185 m. how fast is she going

Explain what happens to light when it is refracted at the surface of water.

A small car meshes with a large truck in a head-on collision. Which of the following statements concerning the magnitude of the momentum change during the collision is correct? (There could be more than one correct choice.

Consider the following distribution of objects: a 3.00-kg object with its center of gravity at (0, 0) m, a 4.20-kg object at (0, 6.00) m, and a 1.40-kg object at (1.00, 0) m. Where should a fourth object of mass 7.

A Volt/Amp Is Also Known As.?

What's the difference between mass & weight & how they are measured