What energy change would accompany the loss
An analytical laboratory balance typically measures mass to the nearest 0.1 mg. What energy change would accompany the loss of 0.1 mg in mass?
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The rates of dehydration for cis-2-methylcyclohexanol and trans-2-methylcyclohexanol were determined. The rate of dehydration of the cis isomer relative to the trans isomer was found to be 30:1.
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Cobalt-60 has a halflife of 5.26 yr. The cobalt-60 in a radio therapy unit must be replaced when its radioactivity falls 75% of the original sample.
Zach, whose mass is 70 , is in an elevator descending at 11 . The elevator takes 3.0 to brake to a stop at the first floor. What is Zach's apparent weight while the elevator is braking?
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A proton of mass mp = 1.67 x 10-27 kg and charge +e = 1.60 x 10-19 C is accelerated from rest through an electric potential of 270 kV. What is its final velocity?
Also assume that all heat rejection processes are to a low temperature reservoir with a temperature of 300 K. Using the properties of air at 300 K, find the peak temperature of the cycle.
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