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1. The average human body has a temperature of 30 degrees celcius, a skin surface are of 1.20mt^2 and an emissivity of 1.0
a. If the surrounding temp is 20degree celcius, the body's net rate of heat loss due to radiation is -------- watts
b. How many food caloried must be consumed per day to maintain that body temperature if only radioactive heat losses are considered?
2. Three moles of an ideal gas are heated at constant temp of 1.5 atm from T= 27 degree c to 177 degree
a. The work done by the gas is----------.
3. A 0.400 kg block of ice at -20 degree celcius is converted to steam at 100 degree celsius.
a. The amount of heat required is -------J or ---------Calories
A silicon diode has a doping profile such that ND = ax3. What is the depth of the junction assuming the p side is uniformly doped with NA per cubic cm. Assume the x origin is at an ideal ohmic contact on the n side of the diode.
Draw the logic diagram for the 4-bit circuit, using full adders and multiplexers. Determine the arithmetic operation performed for each of the four combinations of S and Cin: 00, 01, 10, and 11.
Design a combinational circuit that can detect whether a pattern of at least three adjacent 1s occur anywhere in an 8-bit input, and that outputs a 1 in that case. The inputs are a , b, c, d, e, f, g, and h, and the output is y.
A current i(t) = 10r(t) mA is applied to a 10 mF capacitor for t > 0, where r(t) is the ramp function. At t= 0, the capacitor voltage was zero. The voltage across the capacitor at t = 2 s is
Sketch the following waveforms, and include the theoretical maximum and minimum values of each waveform:
The space between the two concentric cylinders is evacuated. Assuming diffuse, gray surfaces, determine the heat transfer rate per unit area of the outer cylinder. The electrical output of the semiconductor surface is 10% of the absorbed irradiati..
1 Determine the inductive reactance (in ohms) of a 2 mH coil for: a-DC b-60Hz c-4Khz d-1.2MHz 2 Determine the frequency at which a 1mh inductance has the following inductive reactances: a-10-ohm b-4k-ohm c-12k-ohm
Find the time averaged output power of the generator in this circuit.
Establish and identify the full specifications and procedures for the project to design, build and evaluate the chosen PSU circuit. Present your answer in a form of a project plan.
Two random variables X and Y have a joint probability density function given by f(x,y) =kxy 0
description in the process of processor development functional verification is a crucial step that must be conducted
Suppose you need an 8-bit counter, and an 8-bit shift register. How would you go about creating these. Could you create them using the counter and shift register you created already.
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