If the Moon had twice as much mass and still orbits Earth at the same distance, ocean bulges on Earth would be
A) smaller.
B) larger.
C) unequal in size.
D) not significantly different.
E) none of the above
Answer: B
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We live in the ______________ eon
Fill in the blank(s) with correct word
A 12.0 V battery is placed across a 4.00
resistor. If the current through the resistor is 2.80 A, what is the internal resistance of the battery?
A. 0.200
B. 0.290
C. 4.29
D. 3.71
E. 0.800
Diane (weight 255 N) is practicing on a tightrope that is 6.00 meters long and sags by 0.120 meters. When she is in the middle of the rope, what is the force on each eyebolt holding the tightrope?
a. 
b. 
c. 
d. 
Which of the following describes the light that can be detected from a person?
A) The person emits a few narrow wavelengths of visible light according to their composition. B) The person emits many wavelengths of visible light and reflects a continuum of wavelengths of infrared light. C) The person reflects many wavelengths of visible light and emits a continuum of wavelengths of infrared light. D) The person absorbs a few narrow wavelengths of visible light according to their composition.