Finding the change in internal energy
During an adiabatic process, the temperature of 7.30 moles of a monatomic ideal gas drops from 545°C to 291°C. Find the change in internal energy?
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A sound wave with intensity 16 mW/m2 interferes destructively with a sound wave that has an intensity of 19 mW/m2. What is the intensity of the superposition of the two?
Estimate the amount of free fall time that would be possible that would still allow full deployment of the parachute and a safe landing.
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