An astronaut walking outside a space station can be seen, but not heard. The only way to communicate is through radio transmissions.

what type of wave is this? how do you know?

Select the sentence that best describes why copper and some other metals are good conductors. A) Copper atoms have loosely held electrons; this means they can freely move in and out of the nucleus of the atom.

How can Ohm's law be used to calculate the electrical resistance of a piece of wire?

Define and give 2 examples of kinetic energy. Be sure to include the two factors that make an object's kinetic energy increase.

What should you do if you get caught in quicksand

Which of the following would likely be the best reflector of heat energy

If you put in 10 J of work to push 1 c of charge against and electric field what will be its voltage with respect to its starting position? when released, what will be it's kinetic energy if it flies past it's starting position?

The process of changing the energy of a system by means of force. Force * Diatance

A gnat takes off from one end of a pencil and flies around erratically for 18.6 seconds before landing on the other end of the same pencil. If the gnat flew a total distance of 7.15 meters, and the pencil is 6.

An apple falls from an apple tree growing on a 20° slope. the apple hits the ground with an impact velocity of 16.5 m/s straight downward. what is the component of the apple's impact velocity parallel to the surface of the slope?

Objects falling through the air experience a type of friction called air resistance. true or false