Physics, 29.09.2021 17:40 nessross1018
"A stack of five textbooks, each with a weight of 14 N, is resting on a table. What is the normal force acting on the middle textbook in the stack?"
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If forces acting on an object are unbalanced. true or false
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Physics, 22.06.2019 16:50
Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
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Physics, 23.06.2019 04:10
The release of energy by the nucleus of atom as a result of nuclear fission is radiant energy true false
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"A stack of five textbooks, each with a weight of 14 N, is resting on a table. What is the normal fo...
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