Steam at 7 bar, dryness fraction 0.9, expands reversibly at constant pressure until the temperature is 200 °c. calculate the work input and heat supplied per unit mass of steam during the process.

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What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?