Calculate the rate of heat transfer from the tube
Saturated refrigerant 134a vapor at 40 °C is condensed as it flows through a tube at a rate of 0.2 kg/s. The condensate leaves the tube as saturated liquid at 40 °C. Calculate the rate of heat transfer from the tube.
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Of 900 residents surveyed in a city, 414 say they are in favor of a bond issue for a plan to mitigate traffic congestion in the city. What is the 99% confidence interval for the population proportion of residents in favor of the bond issue?
1.5 kg of liquid water initially at 10 °C is heated to 60° C in a teapot equipped with a 1000 W electric heating element inside. Calculate the minimum time it takes to heat the water to the desired temperature.
For a given confidence interval, what is the interpretation of a 96% confidence level? 96% chance that the given interval includes the true value of the population parameter
In a heating system, cold outdoor air at 10 °C flowing at a rate of 6 kg/min is mixed adiabatically with hot air at 50 °C flowing at a rate of 1.5 kg/min.
Saturated refrigerant 134a vapor at 40 °C is condensed as it flows through a tube at a rate of 0.2 kg/s. The condensate leaves the tube as saturated liquid at 40 °C.
Steam at 4 MPa and 400 °C is throttled adiabatically to a pressure of 1 MPa. If the change in kinetic energy is negligible, Calculate the specific volume of the steam after throttling.
Calculate the net work output, the heat input in the boiler and the thermal efficiency of the cycle. Sketch the cycle on the T-s and h-s diagrams for water.
As we wind down this 8 week journey, in 350 words or more, explain how you might view statistics differently and how you will use statistics in your everyday life. Will you apply what you have learned in this course? How?
Given that the actual high value in 2006 was 12,464, how good was the predicted value? What does the pattern suggest about the stock market for investment purposes?
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