What is the refractive index of a medium? a. the ratio of the velocity of light in the medium over the velocity of light in a vacuum b. the ratio of the velocity of light in a vacuum over the velocity of light in the medium c. the ratio of the angle of incidence over the angle of refraction d. the ratio of the angle of refraction over the angle of incidence
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Physics, 21.06.2019 22:30
25pts the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?
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Physics, 22.06.2019 06:30
What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 hz? planck’s constant is 6.63 × 10–34
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Physics, 22.06.2019 11:30
What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole
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Physics, 22.06.2019 11:30
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.
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What is the refractive index of a medium? a. the ratio of the velocity of light in the medium over...
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