Answer: section 2 and 4
Explanation:
I had this problem before and that was the answer.
Answer:
The importance of international bureau of weights and measures are;
1. to bring unification of measurement system.
2. to establish and preserve fundamental international prototypes.
3. to verify national standards, etc.
20N•m or 20J. Work is equal to force•distance, and 5N•4m is 20N•m, or J
Liquids do not have a definite size and always take the shape of the container they're in.
