Which statement is NOT true?

Light travels with or without a medium

Light travels faster than sound

Sound must have a medium to travel through

Both light and sound must have a medium to travel through

If you visited Mount Shasta City (elevation 900 m [3,000 ft]) and found the outside air temperature to be 27C (81F), what would the air temperature at the summit of Mount Shasta (elevation 4200 m [14,000 ft]) at that moment - - assuming that the

Which is usually greater for a pair of surfaces, the coefficient of static friction or the coefficient of sliding friction? why

How many milliliters are in ten grams of gasoline

A table tennis ball with a mass of 0.003 kg and a soccer ball with a mass of 0.43 kg or both Serta name motion at 16 M/S calculate and compare the moments of both balls

What would you be most likely to find if you returned to the solar system in 10.0 billion years?

The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.

Think of the last five things you read. Now think of a type of reading you havent done recenty have never read. What kind of pattern do you see in your reading? What is your favorite type of reading and your least favorite type of reading?

Consider this statement: Air is matter. Which facts best support the statement? A. Balloons can be filled with air. B. Air is essential for life to exist. C. Air has mass. D. Air is not an element. E. To float on air is to be happy. F.

Hydroelectric power uses: wind water coal the sun

Two lightweight metal spheres are suspended near each other from insulating threads. One sphere has a net charge; the other sphere has no net charge. The spheres will: A. Attract each other B. Exert no electrostatic force on each other C.