Vector V1 is (5i + 7j - 3k) and V2 = (7i + 2j + 14k). The vector product of these two vectors is:
(A) -104i + 72j - 39k
(B) -124i + 62j - 33k
(C) 104i - 91j - 39k
(D) -114i - 12j + 91k
(C) 104i - 91j - 39k
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Molar Specific Heats: How much heat is required to raise the temperature of 2.00 moles of an ideal monatomic gas by 10 C° at constant volume? (R = 8.31 J/mol ? K).
A. 249 J B. 416 J C. 208 J D. 200 J E. 125 J
DNA is a complex
a. atom. b. molecule. c. life form. d. mystery. e. acronym.
Materials that have a large magnetic susceptibility and are insulators are _________.
Fill in the blank(s) with the appropriate word(s).
When we see x-rays from an accretion disk in a binary system, we can't immediately tell whether the accretion disk surrounds a neutron star or a black hole. Suppose we then observe each of the following phenomena in this system. Which one would rule out the possibility of a black hole?
A) intense x-ray bursts B) spectral lines from the companion star that alternately shift to shorter and longer wavelengths C) visible and ultraviolet light from the companion star D) bright x-ray emission that varies on a time scale of a few hours