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1. What is the maximum static pressure difference that most residential blowers are designed for?
2. What is the recommended face velocity for a return-air filter grille?
3. Explain what manufacturers mean by a register's throw.
A strictly convex function is defined as one for which every chord lies above the function. Show that this is equivalent to the condition that the second derivative of the function be positive.
a proton moves through a region containing a uniform electric field given by E=50.0 v/m and a uniform magnetic field B=(0.200+.300+.400)T. Determine the acceleration of the proton when it has a velocity v=10.0m/s
Determine in each case whether the indicated signal x(t) isperiodic. If x(t) is periodic, find its fundamental frequence in Hzand fundamental period in seconds. a)x(t) = 3-5cos(1080t) + 7cos(2160πt) b)x(t) = 5sin(1080πt) - 7cos(3240πt)
Transform the circuit in Figure into the s domain and find IL(s) and iL(t) when v1(t) = VAe-1000t u (t), R = 100 Ω, L = 100 mH, and iL(0) = 0 A.
draw a circuit diagram for the following experiment1. set up the dc machine to be operated as a separately excited
A typical "deep-cycle" battery (used for electric trolling motors for fishing boats) is capable of delivering 12.6 V and 10 A for a period of 10 hours. How much charge (in columbs) flows through the battery in this interval. How much energy does t..
Generic Counter with a Stop Value Say that we must design a counter that starts at x min and stops (and remains there) when x max is reached, only returning to the initial value and running again after a reset pulse is applied to the circuit. As i..
Explain why learning reduces the effective marginal cost of production. If firms set prices in proportion to their marginal costs, as suggested by the Economics Primer, how can learning firms ever hope to make a profit?
A certain sine wave has a frequecny of 2.2kHz and an rms value of 25 V. Assuming a given cycle begins (zero crossing) at t=o s, what is the change in voltage from 0.12 ms to 0.20 ms
A silicon bar is 2 micro meters long and has 100 micro meters squared cross section. It is doped with 1x10^17 cm^3 arsenic. a) Find the current with 1V applied at room temperature b) How long does it take for an electron to drift from one end of the ..
An inverting op-amp circuit with the topology of Fig. 2.4 on page 65 of the Text, has Ri = 4.7 kΩ and R2 = 47 kn. What closed-loop gain would you expect? In the laboratory, a student accidentally exchanges these two resistors. What gain would you ..
If a circuit is comprised of a load and multiple switches wired in series with the load and the load is operating, is it possible that one or more of the switches is in the open position
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