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A mad physicist claims to have observed the decay of a particle of mass M into two identical particles of mass m, with M . In response to the objections that this violates conservation of energy, he replies that if M was traveling fast enough it could easily have energy greater than 2mc2 and hence could decay into the two particles of mass m. Show that he is wrong. [He has forgotten that both energy and momentum are conserved. You can analyse this problem in terms of these two conservation laws, but it is much simpler to go to the rest frame of M.]
An aluminum casting that has a mass of 10 kg sits on a steel surface. How much force will be necessary to get it to start sliding. The static coefficient of friction (mu) for aluminum on steel is 0.61.
Determine a suitable value of neutral resistance if the voltage rise at the motor in the event of an earth fault at the motor is not to exceed 430 V. Neglect transformer winding resistance.
Design a 7.5 V zener regulator using a 7.5 V zener diode specified at 11mA. The zener has rz= 20 ohms and a knee current of 0.5 mA . Design the appropriate value of the resistance r and calculate the output voltage variation when the supply voltag..
Given a simple series circuit similar to that shown in the given image, determine the load voltage if the source voltage is VS= 1200°V, the load current is IL= 10-30°A, and the cable impedance is ZC= 0.5
Find the range of values of "k" for which the system has two real, distinct, and stable poles. c) Find the value of k such that the system has a percent overshoot between 5% and 10%. d) Find the system sensitivity to k. e) Find the system type as ..
Design a first order activehigh pass filter with a high frequency gain of 10 and a cut-offfrequency of 400 Hz. Choose C = 100 nF.Determine Ri and Rf. and Design a Sallen-Key low passfilter with Q = 4 and fo = 5000 Hz.
In a motor control system, one master stop pushbutton (Stop) is available for stopping the operation at any time. If the temperature switch (TSW) is closed, pressing the red pushbutton (RedPB) will turn on both motors M1 and M2.
1- Find the voltage across the inductor for t > 0 2- Sketch the voltage and the current as a function of time 3- Find the power ( in microwatts) at the terminals of the inductor when t = 200 ms
You mix aqueous solutions of sodium iodide and lead(II) acetate. If a reaction occurs, write the balanced molecular equation and the net ionic equation. If no reaction occurs, indicate this by writing the formulas of the compounds and an arrow fol..
The response of a LTI system to the input x[n] = (1/4)^n u[n] is y[n]=5(3/4)^n u[n]. A) Find the impluse response h[n] of the system. B) Find the output y[n] for the input x[n] =(1/3)^n u[n].
The voltage response for the circuit is known to be v(t)= D1te^-500t + D2e^-500t. The initial current in the inductor is -10mA and the initial voltage on the capacitor = 8V. The inductor has an inductance of 4H,
The output should have an adjustable linear output voltagerange of between 0 to 5 V and be capable of supplying a current of150 mA throughout the voltage range. The design should include acircuit schematic and provide complete specification of all..
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