Answers: 3
Physics, 22.06.2019 06:00
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.)
Answers: 2
Physics, 22.06.2019 11:00
Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide? kg • what must the total momentum of the system be after the train cars collide? kg •
Answers: 2
Physics, 22.06.2019 17:00
(a) if the pressure in gas is doubled while its volume is held constant, by what factor do (i) vrms and (ii) change? (b) is it possible to boil water at room temperature (20oc) without heating it? explain.
Answers: 3
A sample of an unknown metal has a mass of 0.5 kg. Adding 1985 J of heat to the metal raises its tem...
Mathematics, 06.12.2021 08:30
Physics, 06.12.2021 08:30
English, 06.12.2021 08:30
Mathematics, 06.12.2021 08:30
Mathematics, 06.12.2021 08:30
Mathematics, 06.12.2021 08:30
Mathematics, 06.12.2021 08:30
Biology, 06.12.2021 08:30
History, 06.12.2021 08:30
Physics, 06.12.2021 08:30
Mathematics, 06.12.2021 08:30
Mathematics, 06.12.2021 08:30
Mathematics, 06.12.2021 08:30
Mathematics, 06.12.2021 08:30