Physics, 10.07.2019 23:20 ineedhelp2285
Constants in the high jump, the kinetic energy of an athlete is transformed into gravitational potential energy without the aid of a pole. part a with what minimum speed must athlete leave the ground in order to lift his center of mass 2.15 m and cross the bar with a speed of 0.55 m/s? express your answer to two significant figures and include the appropriate units.
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Physics, 22.06.2019 09:10
The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island
Answers: 2
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
Constants in the high jump, the kinetic energy of an athlete is transformed into gravitational poten...
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