Define element and list two examples.

Why can exposure to an Ultra-violet light and x-rays cause cancer but a visible light and a infra-red light don't

What is a resistor that decreases as temperature increases

Which of the following does not cycle into the atmosphere? a. the carbon cycle b. the phosphorus cycle c. the nitrogen cycle d. the oxygen cycle

Area where the ocean meets the shore

When your friend flies by you in a spaceship at half the speed of light, you observe that a. Time passes more slowly in her spaceship. b. Time passes more quickly in her spaceship. c. Time passes at the same rate in her spaceship as for you.

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