Physics, 16.10.2019 20:00 pnhandley01
A14 kg cannon ball is fired from a 622 kg brass cannon on a frictionless, horizontal surface at an angle of 15º with respect to the horizontal. the cannon is constrained to move only in the horizontal direction. the initial velocity of the cannon ball is vi = 32 m/s. 1) previous to launch, what is the net momentum of the ball and cannon system?
Answers: 3
Physics, 21.06.2019 22:20, CM0
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
Answers: 2
Physics, 22.06.2019 14:30, samehajamal1234567
When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
Answers: 3
Physics, 22.06.2019 14:30, uwunuzzles
Lightning is an example of what phenomenon? a release of a large amount of energyan absorption of a large amount of energya natural electric circuita natural electric current
Answers: 1
A14 kg cannon ball is fired from a 622 kg brass cannon on a frictionless, horizontal surface at an a...
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