Answer: 13.5%.
- A 13.5%
- B 10%
- C 20%
- D 9%
Correct answer: A. 13.5%
Explanation: ΔP% = 2(1) + 3(2) + (1/2)(3) + 1(4) = 2 + 6 + 1.5 + 4 = 13.5%.
The 7 SI base units. All derived units (newton, joule, watt, volt, etc.) can be expressed as combinations of these 7 fundamental units raised to various powers.
Concept context
SI base units, dimensional analysis, significant figures, and error propagation. The toolkit every physics calculation relies on.