Explain the relationship between the terms significant figure and significant digit
A significant figure is the entire number that contains all known significant digits
(individual integers) plus one doubtful digit.
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The paths of the planets' orbits lie in all different directions in the sky.
Answer the following statement true (T) or false (F)
An ideal gas at pressure, volume, and temperature, P0, V0, and T0, respectively, is heated to point A, allowed to expand to point B also at A’s temperature 2T0, and then returned to the original condition. The internal energy increases by 3P0V0/2 going from point
T0 to point A. How much heat entered the gas from point T0 to point A?
a.
0
b.
P0V0/2
c.
3P0V0/2
d.
5P0V0/2
What is the percent uncertainty in the measurement 2.58 ± 0.15 cm?
A) 2.9% B) 5.8% C) 8.7% D) 12% E) 15%
At approximately what time does the third quarter Moon rise?
a) 9pm b) 6pm c) noon d) 6am e) midnight