Physics, 06.12.2019 01:31 sawyerharper
Ametal rod with a length of 22.0cm lies in the xy-plane and makes an angle of 37.9 degrees with the positive x-axis and an angle of 52.1degrees with the positive y-axis. the rod is moving in the +x-direction with a speed of 6.80m/s . the rod is in a uniform magnetic field b =(0.170t)i^-(0.240t)j^-(0.0900t )k^.
what is the magnitude of the emf induced in the rod?
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1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light
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Ametal rod with a length of 22.0cm lies in the xy-plane and makes an angle of 37.9 degrees with the...
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