When used as a theatrical special effect to simulate fog, carbon dioxide gas tends to stay near the floor of the stage. What might account for this effect?

A cork is floating in salty water. As more salt is added to the water to increase its density, the cork will

An unlit match is held near (not touching) a Bunsen flame. The match doesn't get hot enough to light because a. the flame is not hot enough b. air is a bad conductor of heat c. the matchhead reflects radiation d.

Which of the following best defines insulator? a substance with high conductivity a substance that easily transfers heat a substance with low ability or no ability to conduct energy a substance that moves heat from one place to another

Just as a skydiver steps out of the helicopter with no forward velocity someone who's watching start stopwatch so the time is zero as a skydiver steps out of the plane what is the sky divers downward velocity at that entrance just before starting to

a soccer ball is kicked horizontally off a 22 meter high hill and lands 35 meters from the edge of the hill. determine the initial horizontal velocity of the soccer ball

How fast or slow an object is moving and in what direction

Which paragraph shows the correct relationship between kinetic energy and speed?

At which position does the diver have the most gravitational potential energy

The visible light spectrum ranges between A. radar waves and X-rays. B. ultraviolet rays and gamma rays. C. infrared rays and ultraviolet rays. D. television waves and infrared rays.

Sarah added sugar to her iced tea, but it is not dissolving very quickly. Which can Sarah do to make the sugar dissolve faster? Add more sugar. Heat the tea. Add more ice.