a student finds the mass of a table tennis ball using a top pan balance as shown in figure A. the top pan balance reads to the nearest gram. a. the mass of the ball is 2.0g. suggest a reason why placing the ball on the top pan balance does not give an accurate value fior the mass of the ball.
B.the student uses ten identical balls and a glass shown in the figure B. Explain in detail how the student can obtain a more accurate value for the mass of one ball.
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Answer:
1. Electric to chemical
= charging a battery
2. electromagnet
= electrical to magnetic energy
3. rate of doing work
= power
4. large unit of energy
= kilowatt hour
5. joules per second
= watt
6. photocell
= light energy to electrical energy
7. thermocouple
= heat energy to electrical energy
8. electrical energy to mechanical energy
= a grinder mixer
Explanation:
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