The atomic number of an element is determined by the number of A. electrons. B. protons. C. protons and neutrons. D. neutrons.

Which change increases the electric force between objects? -Two neutral objects are moved closer together. -Electrons are added to two negatively charged objects. -Two oppositely charged objects are moved farther apart.

Atoms of elements in the same group of the periodic table share the same

A less-massive object is moving in the same direction as a more-massive object, but with a higher speed. They experience an inelastic collision. Describe the speed of the more-massive object after the collision.

What is meant by the phrase "color by subtraction of light?"

Which could be true about an unknown sample with a pH of 7?

Crickets chirpy and milada jump from the top of a vertical cliff. chirpy drops downward and reaches the ground in 2.70 s, while milada jumps horizontally with an initial speed of 95.0 cm>s.

Explain how gamma rays are produced by energy

A mechanical wave may be described as a disturbance that is transported through a medium via the mechanism of particle-to-particle interaction. Which of these is not classified as a mechanical wave? A) earthquake B) light C) sound D) water

How many paths do the electrons have to flowlin a series circuit?

A force of 6 lb is required to hold a spring stretched 4 in. beyond its natural length. How much work W is done in stretching it from its natural length to 8 in. beyond its natural length?