A motor is used to produce

4.0 waves each second in a string.

What is the frequency of the waves?

F 0.25 Hz

G 15 Hz

H 25 Hz

J 4.0 Hz

Jack travelled 360 km at an average speed of 80 km/h. Elaine took 1.5 hours more to complete the same amount of distance. What was Elaine's average speed for the whole journey? km/h

The sum of potential and kinetic energies in the particles of a substance is called

How is electric potential energy similar to gravitational potential energy? how is it different? where will an electron bound in an atom and have the largest electrical potential energy?

In which structure of a neuron does the action potential occur?

If you are reading a book and you move twice as far away from the light source, how does the brightness at the new distance compare with that at the old distance? It is

0.0003711 in scientific notation is

According to Aristotle where do moving objects tend to reach

If you can simply pour sand into a cup then why is it not a liquid?

2. If a force is exerted on an object, which statement is true?

A charged particle moves at 2.5 * 104 m/s at an angle of 25° to a magnetic field that has a field strength of 8.1 * 10-2 T. If the magnetic force is 7.5 * 10-2 N, what is the magnitude of the charge? 3.7 * 10-5 C 4.1 * 10-5 C 8.8 * 10-5 C 1.