What did nicolaus copernicus discover about the universe

Young David who slew Goliath experimented with slings beforetackling the giant. He found that he could revolve a sling oflength 0.600 m at the rate of9.00 rev/s. If he increased the lengthto 0.900 m, he could revolve the slingonly 7.

A cosmological redshift occurs because light waves coming from stars and galaxies become bluer as they travel away from us. True False

How much would a 50-kg object weigh on Mercury (gravity on Mercury is 3.59 m/s2) ? A. 13.9 N B. 179.5 N C. 310.5 N D. 490.0 N

24. What determines an element's chemical properties? A

What unit is electrical energy typically measured in on energy bills? a. volts b. watts c. joules d. kilowatt-hours

Which of the outer planets are most like Earth? How?

The pressure inside a champagne bottle can be quite high and can launch a cork explosively. Suppose you open a bottle at sea level. The absolute pressure inside a champagne bottle is 6 times atmospheric pressure; the cork has a mass of 7.

Using a cathode ray tube, Thomson confirmed that atoms must have an overall positive charge. atoms are made of particles that have a negative charge. electrons in atoms must have varying amounts of energy. electrons are only found in the nucleus.

A ball is rolled along the inside of a partial hoop lying flat on a table. which path will the ball follow when it gets to the end of the hoop?

What pattern of material movement found in the Earth system tracks how an element moves from living to nonliving parts? a. rock cycle b. calcium cycle c. carbon cycle d. none of the above