What type of general wave requires a medium for the wave to travel through

How many nanoseconds does it take light to travel 3.50 ft in vacuum?

The atomic number of carbon is 6. How many electrons does an ion of carbon have if it is represented by the symbol shown below? 12C1-

Some metal conductor has a resistance of 12ohm. When plugged into a circuit, the amount of heat 144J is released in 12s. What is the voltage at the ends of the conductors?

In an inertial frame of reference, a series of experiments is conducted. in each experiment, two or three forces are applied to an object. the magnitudes of these forces are given. no other forces are acting on the object.

If the amount of work done on a book was 10 J and the force required to move the book was 2.5 N, what was the distance the book was moved?

What is a superconductor?

When you drive from the city to a distant farm, the temperature gets because of the?

How do a joule a watt and a Newton relate to each other

Say you want to make a sling by swinging a mass M of 1.9 kg in a horizontal circle of radius 0.042 m, using a string of length 0.042 m. You wish the mass to have a kinetic energy of 15.0 Joules when released.

List three ways that electromagnetic radiation is used to improve our everyday lives.