If the magnitude of the acceleration of a propeller blade's tip exceeds a certain value amax, the blade tip will fracture. If the propeller has radius r, is initially at rest, and has angular acceleration of magnitude α, at what angular speed ω will the blade tip fracture?
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Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle
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Which is not a characteristic of a heat pump? a. it is used in air conditioners. b. it uses a refrigerant. c. it requires no work. d. it reverses the normal flow of thermal energy.
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Physics, 22.06.2019 01:20
An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
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If the magnitude of the acceleration of a propeller blade's tip exceeds a certain value amax, the bl...
Mathematics, 15.07.2020 01:01
Mathematics, 15.07.2020 01:01
Mathematics, 15.07.2020 01:01
Mathematics, 15.07.2020 01:01
Mathematics, 15.07.2020 01:01