Physics, 02.11.2019 06:31 Andinojose
Aflat sheet of ice has a thickness of 2.12 cm. it is on top of a flat sheet of fused quartz that has a thickness of 1.24 cm. light strikes the ice perpendicularly and travels through it and then through the fused quartz. in the time it takes the light to travel through the two sheets, how far (in cm) would it have traveled in a vacuum?
Answers: 2
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Physics, 22.06.2019 04:00, binodkharal2048
Which configuration would produce an electric current? a) rotate a coil of copper wire between two magnets. b) connect a wire between a copper and zinc strip sitting in a beaker of water. c) connect a wire to the (+) positive end of a battery and the other end to a light bulb. d) connect a wire to the negative end of a battery and the other end to a light bulb.
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Physics, 22.06.2019 16:50, justkevin1231
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
Aflat sheet of ice has a thickness of 2.12 cm. it is on top of a flat sheet of fused quartz that has...
Mathematics, 12.12.2021 01:00