Engineering

Low Pass Filter Circuit?

I have a few general questions Im not too sure about. First : Could anyone show/explain why the cutoff frequency is called the 3dB frequency? I understand that, for example, a low pass filter passes f

Can someone show me how to differentiate (1+x+x^2)(2-x^4)? Unsure of my work Thanks!?

Two ways. (1)f(x) = g(x) h(x) f(x) = gh + gh = (1 + x + x^2)(-4x^3) + (1+2x)(2 - x^4) = -4x^3 - 4x^4 - 4x^5 + 2 + 4x - x^4 - 2x^5 = 2 + 4x - 4x^3 - 5x^4 - 6x^5 (2) f(x) = 2 + 2x + 2x^2 - x^4 - x^

Music snow globe started to play on its own?

Ok so its 1:44 am EST where I am im about to go to sleep suddenly my snow globe music box started to play as if someone turned the key im a bit freaked out right now. It has done this in the past the

The current in a 15 mH inductor is known to be i = 1A @ t <=0 i = A1e-2,000t +A2e-8,000t A @t >= 0 The voltage?

Nice try sele.hahaha

Old Dominion, George Mason, or Virginia Tech For Engineering?

I have been admitted to Old Dominions and George Masons engineering schools but only got into Virginia Techs universal studies, should I go to VT and try to switch in to engineering or go to GMU or OD

Looking for an EXCEL function that allocates a specific value (i.e. 1) under certain conditions (i.e. if its?

>0 or Can someone help me with this? I cant seem to remember which function to use, and have been looking for an hour. Thanks!-Your question is somewhat vague. Here is one formula that may help: =if

What is transformer and what is step up and step down transformer?

Transformer is a static device which transforms electrical energy from one circuit to another without any direct electrical connection and with the help of mutual induction between two windings. It tr

What's the load of a generator?What will be the Load of a generator connected to the national grid?

I understand that the load got something to do with the appliances connected to generator, but i dont fully understand the concept. Also, if it was about the appliances connected,what will be the Load

What skills should i develop for studing engineering?

you should have pass +2 with at least 60 % thats all. Next step you can learn the topics which ever is there in the university sallybus. First search Engineering college in the area where you want to

Can a DC motor 3V can hold not so heavy objects?

I want to buy cheaper DC motors for my robotic arm but i dont know if 3V DC motor can carry and hold not so heavy objects? if not what kind of dc motor should i buy?-While it is true you will use less

Spheres and cylinders?

a solid spherical ball of radius 10 cm is dropped into a vertical cylinder containing water and the height of water rises by 10 cm. find the radius of the cylinder.-Assuming the sphere sinks, it displ

I want to learn the basics about electricity?

I am a junior in high school and want to learn more about electricity. I originally wanted to know this so i could work on the wiring in my house or in a car and also so i could understand or even bui

Huge difference between Installed capacity and Generation of power in INDIA?

India is having total installed capacity of ~2,28,000 MW and Generation in 2013 was only ~1,23,000 MW according tohttp://articles.economictimes.indiatimes.com/2013-04-14/news/38529356_1_peak-power-def

Two stage amplifier question

hi guys my lectures is useless he doesnt provide us with any answers to check if ours are right or wrong can please help me with quation im stuck diagram here https://www.facebook.com/photo.php?f

A car is traveling at a constant velocity of 10 m/s for 10 seconds. The driver notices a lady cr

can any one help me withthat 10 points A car is traveling at a constant velocity of 10 m/s for 10 seconds. The driver notices a lady crossing the street 20 meters away, and immediately applies the bra