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Physics, 22.06.2019 13:10
The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)
Answers: 2
Physics, 22.06.2019 18:30
Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?
Answers: 1
Physics, 23.06.2019 08:00
(10 pts! ) the major factor which causes seasonal weather changes on the earth is: a. elliptical orbit b. variation in distance from sun c. tilt of the axis d. atmosphere
Answers: 2
Alpha particles are emitted during the radioactive decay of...
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