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Physics, 22.06.2019 21:40
Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.
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Physics, 23.06.2019 02:00
Dc versus ac problem. suppose your dc power supply is set to 15 v and the vertical setting on the oscilloscope is at 5 v/div. how many divisions will the trace deflect if you connect the output of the power supply to the scope with the a input switch set on dc? how many divisions if the switch is on ac?
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Physics, 23.06.2019 07:30
Why would an orange roll of your cafeteria tray if you stopped suddenly
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Physics, 23.06.2019 18:30
What is the displacement of an object that starts at the origin and moves to position -8 m? (show all work)
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сколько тепла выделяется в течении 2 часов в проводнике с сопротивлением 60 Ом подключённого к цепи...
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