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What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
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4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:
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Witch of the following best describes a gene...
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