A gold atom has an atomic number of 79 and an atomic mass number of 197. If it is neutral, how many protons, neutrons, and electrons does it have?
A) 79 protons, 118 neutrons, 79 electrons
B) 79 protons, 118 neutrons, 118 electrons
C) 79 protons, 118 neutrons, 39 electrons
D) 118 protons, 79 neutrons, 118 electrons
E) 118 protons, 39 neutrons, 118 electrons
A) 79 protons, 118 neutrons, 79 electrons
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The most easily visible supernova remnant is the _______________ Nebula
Fill in the blank(s) with correct word
Potential of Point-Charges: Two 5.0-µC point charges are 12 cm apart. What is the electric potential (relative to infinity) of this combination at the point where the electric field due to these charges is zero? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
A. 0.75 MV B. 1.5 MV C. 0.0 MV D. 25 MV E. 12.5 MV
A Carnot refrigerator takes heat from water at 0°C and rejects heat to a room at 12°C. Suppose that 92.0 grams of water at 0°C are converted to ice at 0°C by the refrigerator
Calculate the mechanical energy that must be supplied to the refrigerator. The heat of fusion of water is 3.34 × 105 J/kg.
Metamorphic foliation is
A) the same as sedimentary layering. B) the prominent orientation of recrystallized minerals. C) caused by the interaction with chemical fluids. D) a layered appearance caused by mineral growth perpendicular to direction of pressure.