When astronomer vera rubin began to measure the rotation curves of spiral galaxies in the 1960s, she found?

Which of the following is a major property of ocean water? a. salinity c. mineral content b. pressure d. plankton content

A train moves at a constant velocity of 50 km/h. how far will it move in 0.05 h?

I flow from a warmer object to a cooler object until both objects are the same temperature what am I?

Find the equivalent capacitance of a 4.20 uf capacitor and an 8.50 uf in parallel and in series

What is the result of changing the dielectric in a capacitor to a dielectric with a larger dielectric constant? A. The capacitor will have a lower charge at a given potential energy. B.

A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom

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.