Which of the following is a carbohydrate?
a. Maltose
b. Glycine
c. Ribonucleic acid
d. Glyceryl tristearate
a
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If you move an electron in an atom from a low energy level to a higher energy level within the atom, we say that the atom is
a. in the ground state. b. ionized. c. dissociated. d. an excited atom. e. neutralized.
TE is much smaller for lead than for iron. Which therefore has the greater heat capacity per atom at T = 100 K?
A. Lead B. Iron C. Both should be about the same.
About how long does it take the Moon to orbit Earth?
Charge of uniform density (40 pC/m2) is distributed on a spherical surface (radius = 1.0 cm), and a second concentric spherical surface (radius = 3.0 cm) carries a uniform charge density of 60 pC/m2 . What is the magnitude of the electric field at a point 2.0 cm from the center of the two surfaces?
a. 1.1 N/C b. 4.5 N/C c. 1.4 N/C d. 5.6 N/C e. 0.50 N/C