hi everybody i need to design a temperature control unit that works in acordance to light, ie: when there is minimal light then the heating element must come on, and when there is lots of light the heating element must go off...
these are the following specs of the design:
-555 timer must...
Hi everyone, my name is Tics and I need some help with regard to DC choppers. I'd like help in addressing the following:
an overview of DC chopper design in terms of application and technical requirements;
Design procedures for DC choppers;
DC chopper topologies;
A discussion of...
My attempt:
β_1=90.0 dB,β_2=92.0 dB
B2-B1= 10log(I1/I0)-10log(I2/I0)
=10log(I2/I0/I1/I0)
=10log(I2/I1)
0.2 =log(I2/I1)
Therefore: I2/I1=10^(0.2)= 1.58
32 machines/1.58 ≈20
The number of machines that must be removed is 32-20=12
Is that right?
Accoding to US government regulations, the maximum sound intensity levels in the workplace is 90,0 dB. Within one factory, 32 ihdentical machines produce a sound intensity level of 92,0 dB. How many machines must be removed to bring the factory into compliance with the regulation?
Possible...
I have a question: given a piecewise function, f(t)= {t when t<=0 ,0 when 0<t<=1, 1-t when t>1. How do express it as a Heaviside function?
I have tried to do the solution which is : f(t)= (1-t)*H(t-1)+t*H(t). Here I have considered two non-zero portions of f(t), which are t and 1-t. Is that...
Hi HallsofIvy, I understand now, but the last graph isn't supposed to be (2,1) because when t=2 ,y=1...I think you made a little error.
I tried to plot the f(t) using Derive6, here is my sketch below: I'm not sure with the transformations, h(t) and k(t). Please help. Thanks
Homework Statement
Hi everyone. Can someone help me\demonstrate how piecewise-defined functions are plotted using Derive6.
I really appreciate all of you who takes your precious time to help us. May God richly bless you all.
Homework Statement
Please help me sketch the graph of the given piecewiswe-defined function and its transformations:
The function f(t)={t+4 ;-4<=t<0
={-3/2(t)+10 ; 0<=t<2
={1/2(t) ; 2<=t<=4
Homework Equations
The transformations of the...
Thanks a lot CompuChip for your quick reply. And you're right: a scientist is not a person who gives the correct answers, but he's the one who asks the right questions correctly. Keep it up.
Homework Statement
A sprinter accelerates from rest to a top speed with an acceleration which magnitude is 3.80 m/s^2 . After achieving top speed, he runs the remainder of the race without speeding up or slowing down. The total race is 50 m long. If the total race is run in 7.88 s, how far...
"VOLTAGE-CONTROLLED AMPLIFIER". I am required to build a voltage-controlled amplifier
Homework Statement
"VOLTAGE-CONTROLLED AMPLIFIER". I am required to build a voltage-controlled amplifier,using:
1 operational amplifier(741), 1 capacitor between 1 to 10 microfarad(Electrolytic polarised...