Solar system energy. 700 Grams energy products Ball force
Answer:
3. Work
Explanation:
Number 1 isn't correct because you are not using efficiency to hold books and walk across the room.
Number 2 could be correct but isn't in this situation because you use power only to hold the books but not to walk across the room.
Number 4 is not correct because you need to do work to do something.
Answer:
Explanation:
The law of gravitation has to be used in this question along with Newton's second law
Answer:
C. Because the force of friction is acting on the skateboard.
Explanation:
The wheels turn pretty freely on a skateboard but not forever. The friction involved in the wheel mechanism slows the skateboard to a stop.
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