What does an atomic number describe?

The number of nuclei

The number of protons

The number of neutrons

The number of electrons

How does an electromagnetic wave propagate itself? a. A changing magnetic field induces an electric field perpendicular to the magnetic field. b. A changing electric field induces a magnetic field perpendicular to the electric field. c.

The speed of a 4.0 n hockey puck, sliding across a level ice surface, decreases at the rate of 0.61 m/s2. the coefficient of kinetic friction between the puck and ice is: hint: find the puck's mass first.

A bicycle travels at a velocity of 5.33 m/s for distance of 215 m. How much time did it take?

What are the Lunar Maria made of: A Basalt B Breccia C Granite D salt E Water

When u wake up in the morning and you see few on the ground, where did it come from, and how did it form?

A loop of wire is placed in a uniform magnetic field. (a) For what orientation of the loop is the magnetic flux a maximum? The plane of the loop is perpendicular to the magnetic field. The plane of the loop is parallel to the magnetic field.

Dr. Arenas is a scientist who has been trying to determine if increasing pressure will increase the sound that occurs when two chemicals explode.

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started

The elements with the largest atomic radii are found in the

Students will explain, distinguish the difference between the 4 states of matter