An atom having a single proton in its nucleus is a hydrogen atom
a. True
b. False
Indicate whether the statement is true or false
True
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A system in a certain macro state has
microstates. Through some process, the system changes the number of microstates to 
What is the change in entropy for the process?
A. 
B. 
C. 
D. 
The magnitude scale
a. originated just after the telescope was invented. b. can be used to indicate the apparent intensity of a celestial object. c. was devised by Galileo. d. is no longer used today. e. was used to determine the rate of precession.
The Tharsis region of Mars was most likely formed
A) from sediment that piled up due to past water erosion B) by plate tectonics C) by a plume of molten mantle material rising to the surface forming a bulge D) from compressions in the Martian crust as the planet cooled and contracted
Consider a compass with a square magnet placed in a uniform electric field, as shown below. Supposing that we place the square-magnet compass in a rightward magnetic field 
instead of a rightward electric field 
.
A. Clockwise, to align itself with the field. B. Counter clockwise, to align itself with the field. C. 180° either clockwise or counter clockwise. D. It won’t turn, as it is already aligned with the field. E. It won’t turn, because the field wants to twist it around a different axis altogether. F. It won’t turn because it is not affected by this field.