Physics, 06.02.2021 04:00 davelopez979
What energy transformation occur when propane gas is used to lift a hot air balloon?
A. Mechanical --> light --> chemical
B. Chemical ---> mechanical --> light
C. thermal --> chemical --> light
D. chemical --> thermal --> mechanical
Answers: 1
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Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
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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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What energy transformation occur when propane gas is used to lift a hot air balloon?
A. Mechanical...
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