When was the first ozone hole discovered

Longitudinal waves do not have a. amplitude b. frequency c. wavelength d. speed e. nonsense, longitudinal waves have all of these properties

One nanometer is equal to how many centimeters?

What velocity must a car with a mass of 1280 kg have in order to have the same momentum as a 2230?

Two nuclear reactors provide 3200 mw of power. if the transmission system loses 5.1% of the energy produced, how much power from these two reactors would customers receive?

A) find the moon's angular size at its minimum and maximum distances from earth.

Through which medium would EM waves travel the fastest? A. The Ocean B. The Atmosphere C. Rocks

Average mass of a toy car (small, hot wheels) ?

A cannon directed straight upward launches a ball with an initial speed v. The ball reaches a maximum height h in a time t. Then, the same cannon is used to launch a second ball straight upward at a speed 2v.

Does the sun fuse hydrogen into helium or vice versa?

Is it possible to put a distance versus time graph to be universal go mine