Which oftthe following is the least reliable source of background information for a scientific project? General internet site, government internet site, library reserve section, or scientific journal.

Calculate the period of a wave whose frequency is 5 Hertz and whose wavelength is one centimeter give your answer in a decimal form

How does surface currents would be affected if eArth didn't rotate

Two lumps of clay having equal masses and speeds, but traveling in opposite directions, collide and stick together.

For the equation 3Cu + 8HNO3 → 3Cu (NO3) 2 + 2NO + 4H2O, how many units of NO3 are represented on the products side? A) 2 B) 3 C) 6 D) 8

Where do you weigh more: at the bottom of death valley or atop one of the peaks of the sierra nevada? why?

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

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