Calculate critical radius values for interface free energy
If ice homogeneously nucleates at -40 degrees C, calculate the critical radius values of 3.1 x 10^8 J/m3, respectively, for the latent heat of fusion and the ice/water interface free energy.
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A heat pump has a coefficient of performance that is 50% of the theoretical maximum. It maintains a house at 20°C, which leaks energy of 0.6 kW per degree temperature difference to the ambient.
Calculate the values and directions of the principal stresses at the point and also the maximum shear stress, stating on which planes this will act.
If all this energy is released during a 12.5 hour day, at 78.3 percent efficiency, what is the average power output?
Hydrogen gas is used in a Carnot cycle having an efficiency of 60% with a low temperature of 300 K. During the heat rejection the pressure changes from 90 kPa to 120 kPa.
Calculate the critical radius values of 3.1 x 10^8 J/m3, respectively, for the latent heat of fusion and the ice/water interface free energy.
Determine the magnitude and direction of the net electrostatic force on the charge at x = +3.0 m. Specify the direction relative to the -x axis.
Test the given claim using the p value method or critical value method. Construct a confidence interval suitable for testing the given claim.
An axially loaded brass strut hinged at both ends is 1m long and is of a square cross-section of sides 20mm. What should be the dimension of a steel strut of the same length and subjected to the same axial loads?
Twenty pounds of a gas mixture is contained in a tank with volume 30 cubic feet at 30 psia and 70 F. Using constant-specific heat theory, find the final temperature if 400 Btu of heat is added to the gas mixture.
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