In which situations is work being done?
(I put the choices below, also I need more than one answer)
1. Hannah leans against her locker, but it doesn't move
2. Andy's car rolls down a hill with the engine off
3. A wind turbine stands still on a sunny, windless day
4. A balloon expands as its heated by the sun
5. James pedals a stationary exercise cycle that doesn't move
Answers: 2
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In which situations is work being done?
(I put the choices below, also I need more than one answer)...
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