Answer: 4.5%.
- A 1.5%
- B 3%
- C 6%
- D 4.5%
Correct answer: D. 4.5%
Explanation: Volume V = (4/3)π(d/2)³ depends on the cube of diameter, so the relative error is multiplied by 3: 3 × 1.5% = 4.5%.
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.