What is the number of protons in an atom of sodium? A) 11 B) 11.9897 C) 12 D) 23

When a hole is made in the side of a container holding water, water flows out and follows a parabolic trajectory, similar to an object in projectile motion. If the container is dropped in free fall, the water flow: a. goes out in a straight line b.

An elevator rising at a constant speed. What forces are acting on the elevaror? A: Normal and tension B: Gravity and tension C: Normal, gravity, and tension D: Gravity

In shoreville, the last low tide was at 12:00 a. m. About what time will the next high tide occur?

Sound waves A. are a part of the electromagnetic spectrum B. do not require a medium for transmission C. are longitudinal waves D. are transverse waves The Doppler effect occurs with A. only sound waves B. only transverse waves C. only water waves D.

Rewrite with only sin x and cos x. sin 3x a) 2 sin x cos2x + cos x b) 2 sin x cos2x + sin3x c) sin x cos2x - sin3x + cos3x d) 2 cos2x sin x + sin x - 2 sin3x

The correctly balanced equation for H2O2 → H2O + O2 is

How would an unbalanced chemical equation convey misleading information about what took place during a chemical reaction?

A car rounds a 75-m radius curve at a constant speed of 18 m/s. a ball is suspended by a string from the ceiling the car and moves with the car. the angle between the string and the vertical is:

Emission of light from an atom occurs when an electron

Which is an example of transfroming potential energy to kinetic