Determine exit temperature and quality of refrigerant
Refrigerant 134a enters an insulated throttling valve at 140 lbf/in2 and 80°F. The refrigerant exits the valve at 50 lbf/in2. Determine the exit temperature and quality of the refrigerant.
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Assuming the heat transfer from the back side of the plate to be negligible and disregarding radiation, determine the number of transistors that can be placed on this plate.
A tube of Listerine Tartar Control toothpaste contains 4.2 ounces. As people use the toothpaste, the amount remaining in any tube is random. Assume the amount of toothpaste remaining in the tube follows a uniform distribution. From this informati
Assume that the enthalpy fusion of ice is 6020 J/mol and does not vary appreciably over the temperature range of 270-290 degrees Kelvin.
A crate of mass 45.0 kg is being transported on the flatbed of a pickup truck. The coefficient of static friction between the crate and the truck's flatbed is 0.300, and the coefficient of kinetic friction is 0.210.
Fluorine-18 undergoes positron emission with a half-life of 1.1x10^2 minutes. If a patient is given a 248mg dose for a PET scan, how long will it take for the amount of fluorine-18 to drop to 83mg?
A baseball leaves a pitcher's hand horizontally at a speed of 160 km/h. The distance to the batter is 18.3 m. Neglect air resistance. a) How long does the ball take to travel the first half of the distance?
Find E(x) where X is the outcome when one rolls a six-sided balanced die.Find the mgf of X. Also, using the mgf of X, compute the variance of X.
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