A model for combining the electromagnetic, weak and strong nuclear interactions into a single basic force is a(n)
a. electroweak theory.
b. GUT.
c. quark theory.
d. generalized theory of relativity.
e. theory of strangeness.
b
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Does biological evolution violate the law of entropy, and why or why not?
A) No, because the energy increase of Earth's living organisms is exactly balanced by the energy decrease of the radiation flowing through those organisms. B) No, because the increase in the entropy of the radiation passing through living organisms is greater than the decrease in the entropy of those organisms. C) No, because Earth's organisms actually increase their own entropy during evolution, despite the appearance that they are becoming better organized. D) Yes, because this law is violated in situations involving energy from the sun. E) Yes, because this law is violated when new species are created on Earth.
How many electrons can be found with principal quantum number n = 3 in a suitably heavy atom?
A) 18 B) 6 C) 20 D) 9
A multiple slit diffraction grating has a slit separation of 2.00 × 10^-6 m. Find the wavelength of the monochromatic light that will have its second order (m = 2) bright fringe diffracted through an angle of 43.4°. (1 nm = 10-9 m)
a. 616 nm c. 687 nm b. 500 nm d. 120 nm
If a quantity you calculated had units of kg ? m/s, what type of quantity could it be?
A. momentum B. kinetic energy C. work D. impulse E. force