1. Rolling friction is _____than sliding friction.
2. Graphite powder is used in some machines to ____ friction.
3. We want to reduce friction in order to increase ______.
4. To reduce friction between rotating shafts we use ______.
Answers
Answered by
3
Answer:
1.lesser2.increase3.force4.ball bearings
Answered by
1
- stronger
- increase
- i don't know
- grease
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