Explain under what conditions you would use percentage error and when you would use percentage difference. Why would you sometimes use both?
Percent error is defined as the ratio of the absolute difference between the
experimental and the accepted values to the accepted value, expressed as a
percentage. Percent difference is defined as the ratio of the absolute difference
between the experimental values to an average of the experimental values, expressed
as a percentage. Percent error is a measure of accuracy while percent difference
relates to precision, so both can tell something valuable about how well an
experiment has been done.
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A pattern of dark lines on a continuous background is referred to as
A) an emission line spectrum B) an absorption line spectrum C) a continuous spectrum D) a dark spectrum
An isolated, charged conductor is in electrostatic equilibrium. Which statement is correct? a. The net charge is never zero inside the conductor
b. The electric field is always zero just outside the conductor. c. The charge density on the conductor's surface is greatest where the surface is sharpest. d. None of these statements are correct.
A resistor is made out of a wire having a length L. When the ends of the wire are attached across the terminals of an ideal battery having a constant voltage V0 across its terminals, a current I flows through the wire
If the wire were cut in half, making two wires of length L/2, and both wires were attached across the terminals of the battery (the right ends of both wires attached to one terminal, and the left ends attached to the other terminal), how much current would the battery put out? A) 4I B) 2I C) I D) I/2 E) I/4
Almost all the oxygen in Earth's atmosphere is unique among the planets in our solar system
Indicate whether the statement is true or false