Dimensional Analysis: When adding several quantities
A. the quantities can have any combination of units.
B. the quantities must all have exactly the same units.
C. the quantities must all be dimensionless.
Answer: B. the quantities must all have exactly the same units.
You might also like to view...
An advantage in evaluating surface integrals related to Gauss's law for symmetric charge distributions is
A) the flux is outward. B) the flux is inward. C) the electric field is of constant magnitude on certain surfaces. D) the charge is always on the surface. E) the electric field is a constant on any surface.
An organ pipe is open at both ends. The frequency of the fourth mode is 316 Hz higher than the frequency of the third mode. If the speed of sound is 340 m/s, then what is the length of the organ pipe?
A. 53.8 cm B. 59.8 cm C. 60.3 cm D. 62.8 cm E. 64.7 cm
What is the chief difficulty in attempting to detect planets around other stars?
A) Planets do not emit visible light. They are typically at least a billion times fainter than their host stars. B) Even the largest planets are typically at least a factor of 10 times smaller than their host stars. C) Planets do not glow in the infrared, so infrared telescopes cannot be used to study them, either. D) A and B E) A, B, and C
Which of the following is NOT a type of plate boundary?
What will be an ideal response?