Physics, 08.06.2021 17:20 shelbyp2003
A rock is dropped from a tall building and is heard to hitting the ground 7.17 s after being dropped. Determine the height of the building. Round to one decimal places.
Answers: 1
Physics, 21.06.2019 17:00, itzia00
Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.
Answers: 1
Physics, 22.06.2019 02:30, ayoismeisjuam
What are the factors that affect the resistance of a wire?
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
A rock is dropped from a tall building and is heard to hitting the ground 7.17 s after
being droppe...
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