Physics, 04.08.2019 12:30, jeffffffff
Galaxies moving away from us will emit light that is redder then we would otherwise expect? true or false
Answers: 2
Physics, 22.06.2019 13:10, pearlvldz
The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 ร 1013 rad/s. the mass of a nickel atom is 9.75 ร 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 ร 10-34 j โข s, , 1 ev = 1.60 ร 10-19 j)
Answers: 2
Physics, 22.06.2019 18:00, abigail018
Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
Answers: 1
Physics, 22.06.2019 23:30, aly5839
Aswimming pool whose volume is 10 comma 000 gal contains water that is 0.01% chlorine. starting at tequals0, city water containing 0.003% chlorine is pumped into the pool at a rate of 5 gal/min. the pool water flows out at the same rate. what is the percentage of chlorine in the pool after 1 hour? when will the pool water be 0.006% chlorine?
Answers: 1
Galaxies moving away from us will emit light that is redder then we would otherwise expect? true or...
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