Select all the correct answers.
***Earth and Space Science***
In which situations is w...
Physics, 09.03.2021 01:20 baidentheodore617
Select all the correct answers.
***Earth and Space Science***
In which situations is work being done? 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 it is heated by the sun 5. James pedals a stationary exercise cycle that doesn't move
Answers: 2
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An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point
Answers: 1
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Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?
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