Physics, 14.10.2021 01:00 justiceisbae1
2) Milan is measuring the density of ethanol. He weighs a bottle three times first empty, then filled with
water; then filled with ethanol. Here are his results:
mass of empty bottle = 30.0g mass of bottle filled with water = 90.0g
mass of bottle filled with ethanol = 78.0g
a) Calculate the volume of the bottle.
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 08:00
If the force applied to an object remains constant, is more power needed for the object to move faster ? explain
Answers: 3
2) Milan is measuring the density of ethanol. He weighs a bottle three times first empty, then fille...
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