It's 6 A.M. and the Moon is at its highest point in your sky (crossing the meridian). What is the Moon's phase?
A) new
B) first quarter
C) full
D) third quarter
D
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A gas can containing a gallon of gasoline is stored in a basement. This gasoline contains
A) both work and energy. B) neither work nor energy. C) work. D) both energy and power. E) energy.
A 90-m-long high-voltage cable is suspended between two towers. The mass of the 90-m cable is 100 kg. If the tension in the cable is 25 000 N, what is the lowest frequency at which this cable can oscillate?
a. 0.83 Hz b. 1.00 Hz c. 1.7 Hz d. 2.00 Hz e. 3.3 Hz
Machines produce less work than is used to run the machine
What will be an ideal response?
What precision should you expect for a quantity that you determine by estimation in which variables used in the calculation are rounded to the nearest power of ten?
A) Two significant figures will always be correct. B) the correct order of magnitude C) Anywhere from two to three significant figures will always be correct. D) One significant figure will always be correct. E) Three significant figures will always be correct.