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Gordon is going for a run through the park, but it is cold outside. the low outside temperature could affect his personal safety.
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The energy produced as a result of this flow of electrons from atom to atom is called
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An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?
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Why don't the needles on a compass point East and West?...
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