Physics, 07.11.2019 21:31 genyjoannerubiera
Amedicine ball is dropped from a height of 1 m. it strikes the ground with an energy of 50 j. what is the mass of the medicine ball?
Answers: 1
Physics, 22.06.2019 06:00
Explain earth's motion, using the terms "precession" and "rotation" in your answer.
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Physics, 22.06.2019 16:50
Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
Answers: 3
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.
Answers: 2
Amedicine ball is dropped from a height of 1 m. it strikes the ground with an energy of 50 j. what i...
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