What property of most stars can be determined by their color?
A.) mass
B.) Size
C....
Physics, 05.05.2020 10:14 WorkingButNotReally
What property of most stars can be determined by their color?
A.) mass
B.) Size
C.) Distance from Earth
D. luminosity
Answers: 1
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 06:30, vaelriacb9300
Suppose you have a box. which of these is not necessarily a true statement regarding the relationship between the force applied to the box, the work done on the box, and the distance the box is moved? a. if the box is not moved, no force is being applied to the box. b. if no force is applied to the box, no work is done on the box. c. if work is done on the box, then a force is applied to the box. d. if work is done on the box, then the box is moved a distance.
Answers: 2
Physics, 22.06.2019 14:00, ogneshelle
The earth exerts a gravitational force of 500 n on amy. what is amy’s mass in kg?
Answers: 2
Physics, 22.06.2019 16:40, ashleypere99
Panel bc in fig. p2.76 is semi-circular, with the 3 meter radius and horizontal straight edge through point b. compute (a) the hydrostatic force of the water on the panel, (b) its center of pressure, and (c) the moment of this force about point b. assume atmospheric pressure on the dry side of the panel
Answers: 3
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