Physics, 28.11.2020 01:00, DylanJF1339
A skier leaves the end of a horizontal ski jump at 23.0 m/s and falls through a vertical distance of 3.45 m before landing.
(a) Neglecting air resistance, how long does it take the skier to reach the ground?
(b) How far horizontally does the skier travel in the air before landing?
m
Answers: 2
Physics, 22.06.2019 06:00, nelsy7610
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 12:30, shanicar33500
Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground. what is his gravitational potential energy above the ground?
Answers: 1
A skier leaves the end of a horizontal ski jump at 23.0 m/s and falls through a vertical distance of...
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