Physics, 13.08.2019 03:20, Marqiuse412
Athin, very light wire is wrapped around a drum that is free to rotate. the free end of the wire is attached to a ball of mass m. the drum has the same mass m. its radius is r and its moment of inertia is i = (1/2)mr2 . as the ball falls, the drum spins. at an instant that the ball has translational kinetic energy k, what is the rotational kinetic energy of the drum?
Answers: 2
Physics, 22.06.2019 01:00, Bearboy1564
Asuppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer.
Answers: 3
Physics, 22.06.2019 16:50, JeroMii
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
Physics, 22.06.2019 22:00, jayonelijah
Ultraviolet radiation is dangerous because it has a high enough energy to damage skin cells. what is the best explanation of the relationship between wavelength and wave energy? a) wave energy is related only to frequency, not wavelength. b) longer wavelengths have lower frequencies but higher energy. c) the shorter the wavelength, the lower the frequency and the higher the energy. d) the shorter the wavelength, the higher the frequency and the higher the energy.
Answers: 3
Athin, very light wire is wrapped around a drum that is free to rotate. the free end of the wire is...
Mathematics, 03.09.2020 21:01
English, 03.09.2020 21:01
English, 03.09.2020 21:01
History, 03.09.2020 22:01
Mathematics, 03.09.2020 22:01
Mathematics, 03.09.2020 22:01