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1. What site conditions should be taken into account when considering the installation of a ground-source heat pump?
2. What is a water-to-water heat pump?
3. What are some of the advantages of radiant floor heating?
How does the increase in the kinetic energy of a proton compare with the increase in kinetic energy of the alpha particle in part?
Let Xa (jΩ) denote the Continous Time FourierTransform of a real-valued continuous time functionxa(t). Show that the magnitude spectrum | Xa(jΩ) | is an even function of Ω and the phase spectrumθ(Ω) = arg{Xa (jΩ)} is an odd function ofΩ.
Consider a DC series motordesigned to operate with VS = 200 V. Suppose the rotorresistance is 0.40 ohms. and the field coil resistance is0.10 ohms . An RPM measurement reveals that when the line currentis 35 A when the motor is spinning at n = 500..
A simple RC filter is to be designed to pass frequencies below a nominal value of 40 Hz. If the attenuationat 40 Hz is to be 5 dB, determine suitable values of R and C for the filter.
A torque of 10 N.m is applied to a uniform disk shaped flywheel. The flywheel has a mass of 20kg and a radius of 0.5m. At t=0, the flywheel is at rest. How much energy is stored in the flywheel at the end of 20 sec
A sinusoidal current is zero at t = - 625 s and increasing at a rate of 8000 A/s. The maximum amplitude of the current is 20 A. a) What is the frequency of i in radians per second
If a sonusoidal waveform has a frequency fo=1,010Hz and is sampled with fs=100Hz, what value of fa is perceived from the samples
Design the transistor width-to-length ratio such that vO = 0.1 V when vI = 3.3 V. - Using the results of part (a), determine the transition point for the transistor.
The input to the filter is Vin(t)=5+5cos(1000pi*t)+sin(20000pi*t)+4cos(3000pi*t) V and the output is Vout(t)=5+5cos(1000pi*t+10deg)+5sin(3000pi*t) V.
If the total power amplification through the receiver stages is G_R find the output power of the receiver. If the noise power at the output is identical to the noise power at the input of the receiver, find the NF for the receiver.
A three-phase, four-wire system operating with a 208-V line voltage is shown in Fig. 12.64. The source voltages are balanced. The power absorbed by the resistive wye-connected load is measured by the three-wattmeter method.
For the network of given Figure: - Determine the currents Is, I1, I3, and I4 , - .Calculate Va and Vbc.
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