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A room is heated by a baseboard resistance heater. When the heat losses from the room on a winter day amount to 6500 kJ/h, the air temperature in the room remains constant even though the heater operates continuously. Determine the power rating of the heater, in kW.
Given: A permanent magnet DC motor has a machine constant, Kv = 0.5 V-s. The no-load torque is 1.0 Nm. Assume mechanical torque loss is a constant. Determine the mechanical power developed by the unloaded motor at 1250 rpm.
Explain what happens if R was chosen to be linear? Use the given values of resistances, line currents under the bus fault, CT ratios and relay setting. Explain what happens if, during normal operation (that is if there are no primary side faults),..
Vout=3.5v1 +(-1.5)v2 . The input impedances should be: input 1: 20k, input 2:∞.Youmay need to use 2 or more op-amps (inverting, noninverting,summing, differential, voltage follower...). Show calculations anda drawing of the op amps used.
A) How far is the spring stretched at the equilibrium postion B) How much potential energy is stored in the spring C) the mass is pulled down a distance of 4.50 cm and released. How fast is the mass moving when it is 2.50 cm above the equilibrium p..
Find the sides and angles of the triangle whose vertices are i-2j+2k,2i+j-k and 3i-j+2k.
Design a vending machine that accepts a nickel, dime, or a quarter (represented by SW1, SWO = 01,10, or 11, respectively). Thus you can only input one coin at a time. It also does not accept more than 35 cents. In real operation, the coin will be ..
The transfer function of a causal LTI system is H(s)= 1/(s^2+4) Suppose we would like the output y (t) to be identical to zero for t = 0. If we let x (t) =δ(t), what would the initial conditions be equal to
Predict how much time it would take a processor to access each memory location in a 64-bit address bus when the clock speed of the processor is 4 GHz and the memory speed is not the limiting factor
What are Power Factor improvement Methods with Their advantages & Disadvantages ?
Suppose a certain causal signal f(t) has a Laplace transform F(s) = 1. If f(t) is sampled at times kT where T is a constant time interval and integer k>=0, what are the sample values
Find the Fourier Transform of f(t),Plot (with axis labels) the frequency spectrum for the continuous signal. (both magnitude and phase)What is the bandwidth of this signal in rad/s and Hz?
Consider an electron in a cubic crystal of a semiconductor material. Such an electron is free to move throughout the cubic volume of the crystal, but cannot escape outside the cube. It is trapped in a three-dimensional infinite potential well.
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