Which law states that the orbit of each planet is elliptical and that the Sun is at one focus of each ellipse? A. Kepler's first law B. Kepler's second law C. Kepler's third law D. Newton's law of universal gravitation

Stars are powered by nuclear fusion reactions. True or false?

If HST has a tangential speed of 7,750 m/s, how long is HST's orbital period? The radius of Earth is 6.38 * 106 m.

Name at least three other forms of energy that are formed as a roller coaster travels.

How long does a ship take to cross the pacific?

Steve and Carl are driving from Scranton to Bridgeport, a distance of 180 miles. If their speed averages 60 miles an hour, how long will it take them to get there? A. 3.5 hours B. 3 hours C. 2.5 hours D. 4 hours

The physiological aim of drive reduction theory is

You are caring for a person who was involved in an automobile collision. The woman is complaining of pain in her abdomen, nausea and extreme thirst. She also is breathing rapidly. Which of the following would you suspect?

A fountain of water and steam that erupts from the ground

A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 120 ft high. how much work is done (in ft-lb) in pulling half the rope to the top of the building?

Does adding a neutron to an atom's nucleus makes it an ion?