Determine maximum height reached by dart
A 0.5 kg dart is fired vertically from a spring gun that has spring constant of 4000 N/m Prior to release the spring was compressed by 10.7 cm. When dart is 2 m above the gun its upward speed is 7 m/s. Determine maximum height reached by dart.
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A mixture of CH4 (methane) and C2H6 (ethane) weighs 68.00 grams and it is burned in with oxygen fuel. The products formed in this reaction are H2O and CO2 and these products weigh 13.00 grams. Find the fraction of methane in the original mixture.
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