Which statement best describes an asteroid? A. large chunks of rock with many craters that orbit the sun. B. Pieces of rock or dust that shine or flicker in the earth's atmosphere. C. An object made of ice, gas, and dust that orbits the earth. D. Large chunks of rock with bright tails that orbits the sun.

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?