Assume you were listening to a lecture on Emile Durkheim’s approach to deviance. You might expect the focus of the lecture to be that ________.
The fundamental difference between older mass media and newe…
The fundamental difference between older mass media and newer social media is that social media ________.
Democratization of Fashion means that
Democratization of Fashion means that
Which timer is used to compensate for differences in part th…
Which timer is used to compensate for differences in part thickness by terminating the exposure when ionization from the exposure reaches a certain level?
There are 3 different constructions of transformers.
There are 3 different constructions of transformers.
Full-wave rectified three-phase 6 pulse units provide an x-r…
Full-wave rectified three-phase 6 pulse units provide an x-ray beam at _____ per second.
A sample of blood is found to contain 64.5 micrograms of val…
A sample of blood is found to contain 64.5 micrograms of valproic acid. (1mg=1000ug u=micro) How many milligrams of valproic acid does this blood sample contain? numerical answer only Answer must be in correct amount of significant digits.
1A) (5 points) A metal bar has a cross section of 1 by 2 cm2…
1A) (5 points) A metal bar has a cross section of 1 by 2 cm2 and is made of copper . Thermocouples are inserted at 2 mm and 4 mm below the surface of the bar are reading Ttc1 = 40°C and Ttc2 = 42°C. Estimate the surface temperature of the top of the bar. Assume bar’s sides are insulated.
Problem 3. (40 points) An air-cooled heat sink with 9 plate…
Problem 3. (40 points) An air-cooled heat sink with 9 plate fins is used to maintain a CPU at 80°C. There is contact resistance of between the CPU and the base of the sink. Thermal conductivity of the heat sink is 160 W/(m×K). Geometric variables are as follow: fin thickness (tf) = 2 mm, fin length (Lf) = 12 mm, cross-sectional shape of CPU = 2 cm x 2 cm (square), heat sink’s base thickness (tb) = 3 mm. Air temperature is 25°C and convection coefficient is 50 W/(m2K). Ignore internal heat generation and radiation heat transfer. Assume that the fin tips are adiabatic. Draw a thermal resistance circuit that expresses the heat transfer from the CPU’s top surface to air. Below the circuit show the expressions for thermal resistances (e.g., expression for a radiation resistance is 1/hrA). Then, determine the 1) total resistance in K/W (or °C/W) 2) overall fin efficiency and 3) heat rate from CPU to air in W.
Which of the following is an Inborn Error of protein metabol…
Which of the following is an Inborn Error of protein metabolism?