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According to its directional distribution, solar radiation incident on the earth's surface may be divided into two components. The direct component consists of parallel rays incident at a fixed zenith angle ?, while the diffuse component consists of radiation that may be approximated as being diffusely distributed with ?. Consider clear sky conditions for which the direct radiation is incident at ? = 30°, with a total flux (based on an area that is normal to the rays) of q''dir = 1000 W/m2, and the total intensity of the diffuse radiation is 1 dif = 70 W/m2 · sr. What is the total solar irradiation at the earth's surface?
A coaxial air line has an inner conductor diameter of 2mm and the inner diameter of the outer conductor is 4.6mm. A voltage of 1 V is applied to the inner conductor. Determine the surface charge densities on the inner conductor
For a complex load of 30 - 50 j ohm. find the matching circuit consist of ideal capacitor and/or inductor to match the load to 50 ohm impedance at 2GHz. The solution should include circuit schematic and values of each component.
suppose that 3 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 42 cm. a how
derive and determine the transmission reflection coefficients for a particle traveling with an energy (a) 2ev and (b) 20ev. If the block is given infinite potential and the length is expanded to 1m,(c) what would be the transmission and reflection..
the telephone company has a fiber-optic line with time division multiplexing that runs from the united states to
The R2= 6 homs load in the circuit is absorbing four times as much average power as the R1 = 20 ohmsohms load. The two loads are matched to the sinusoidal source that has an internal impedance of 500 (angle) 0 1)What is the numerical value of a1
Using only a 100nF capacitor and resistor(s), design a passive (meaning Av = vo/vi =1 maximum, =0 minimum) low-pass filter with a break frequency of 1000Hz. a. Sketch the schematic noting Vin, Vout and the component values
draw a gate level schematic of a 4bit ALU that can ADD, Subtract, and AND. include the use of an adder/subtractor unit consisting of 4 full adders, and 4-bit 2:1 mutiplexer. No diagrams, gate level schematic only.
My 9year old son is very interested in science and is working on aproject that involves hooking up a motion sensor (PIR) to a clock alarm. The challenge is to get the PIR to de-activate a sounding alarm.
1. Set θd (t) = 0. Compute the transfer function h(t)/r(t) = T(s). 2. Set r(t) = 0. Compute the transfer function h(t)/θd(t) = Td(s)
Call setup is proportional to arrival rate and usagecost is proportional to traffic intensity. (a) what happens to total cost if arrival rate doubles, but holding time halves (b)what happens to total cost if arrival rate halves, but holding time d..
if an automobile battery delivers 120 A when the car is being started, and the starting process takes 6 seconds, how many electrons flow out of the battery
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