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 Help with college assignment please. 
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Super Trooper
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Post Help with college assignment please.
If anyone could help with the following question I would be eternally grateful. This is part of an assignment I have to finish by Monday. This is driving me nuts. I realise it's probably simple but after spending the night doing binary hexadecimal shite, my brain is fried.

Anyway here goes.

10. Given an AC Voltage that varies in time according to the equation:

v(t) = 50 sin(100t)

⦁ What is the frequency of this waveform?
⦁ Calculate the time for one complete cycle of the voltage?
⦁ Calculate the instantaneous value of the voltage at time = 6ms.
⦁ Calculate the Root-Mean Square (RMS) value of the AC voltage.
⦁ The first time after t=0ms that the instantaneous voltage is 50V.


5(a) A 8-bit ADC uses a reference voltage of 5V. Calculate the digital output value for an analogue input of 2.7V? What voltage will give a digital output of 100?
[3 marks]

5(b) If we have a high-resolution audio format that aims to provide the high quality audio signals in the frequency range 10Hz to 25kHz with a dynamic range of 60dB.

⦁ What minimum sampling rate should be used by this format?
⦁ What is the minimum number of bits required per sample?
⦁ If the only ADC chips that are available are 8-bit, 16-bit, 24-bit and 32-bit chips, which one should be used (with minimum complexity)?
⦁ What is the minimum storage capacity (in gigabytes) that the disk must have to store one hour of stereo audio when using your chosen ADC chip?


I'm desperate here. My mind has gone blank, the Internet won't help and the course handbook is all over the shop. Please someone help.
Thank you.


Sun Nov 24, 2013 3:17 am
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Storm Trooper
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Post Re: Help with college assignment please.
Can't help I'm afraid, I understand nothing of these things.

4,000 year old bits of pottery, I'm your man, but electricity is too complicated for me.

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Sun Nov 24, 2013 10:03 am
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Storm Trooper
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Post Re: Help with college assignment please.
I kind of feel it's the kind of thing I should know, but honestly I think my BSc should be a BA as I never really got the physics behind it all.

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Sun Nov 24, 2013 12:36 pm
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Darth Fucking Vader
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Post Re: Help with college assignment please.
Do your own homework, cunt.

(Sorry bas, I don't even understand the questions, let alone how to answer them)


Sun Nov 24, 2013 12:38 pm
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Super Trooper
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Post Re: Help with college assignment please.
Ask yourself, what would Cthulhu do?


Sun Nov 24, 2013 1:17 pm
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Super Trooper
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Post Re: Help with college assignment please.
Painkiller wrote:
Do your own homework, cunt.

Looks like that's what I'm going to do.
Myrddin wrote:
Ask yourself, what would Cthulhu do?

Cthulhu would wait dreaming in his house at R'lyeh.
It's times like this I wish I had the transit van that Crom talks about. I could kidnap the lecturer and threaten him with rape.


Sun Nov 24, 2013 3:54 pm
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Space Ranger
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Post Re: Help with college assignment please.
Trigg does self-mocking and it's funny.

Bas does it, and it sounds a plausible scenario...


Sun Nov 24, 2013 3:57 pm
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Super Trooper
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Post Re: Help with college assignment please.
I'm desperate Steev. I'm sure you were ruthless in your rise to the top of H.R.


Sun Nov 24, 2013 3:59 pm
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Super Trooper
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Post Re: Help with college assignment please.
He has sacked literally thousands of Shallows in his time.


Sun Nov 24, 2013 4:01 pm
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Super Trooper
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Post Re: Help with college assignment please.
speaking of Shallow. He's been missing a while. Maybe he got a job at Ministry of Sound.


Sun Nov 24, 2013 4:02 pm
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Super Trooper
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Post Re: Help with college assignment please.
He dared to approach Steev.

Image


Sun Nov 24, 2013 4:04 pm
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Super Trooper
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Post Re: Help with college assignment please.
and Steev replied:
Image


Sun Nov 24, 2013 4:07 pm
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Storm Trooper
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Post Re: Help with college assignment please.
Annihislater wrote:
I kind of feel it's the kind of thing I should know, but honestly I think my BSc should be a BA as I never really got the physics behind it all.


BSc >>>>> BA

We all know it, especially those of us with the latter.

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turdy wrote:
Great tits and slow as fuck doom are Cromwell's Raison d'être.


Sun Nov 24, 2013 7:55 pm
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Super Trooper
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Post Re: Help with college assignment please.
Cromwell wrote:
Annihislater wrote:
I kind of feel it's the kind of thing I should know, but honestly I think my BSc should be a BA as I never really got the physics behind it all.


BSc >>>>> BA

We all know it, especially those of us with the latter.


FUCK YOU, I GOT TO RUN AROUND PRETENDING TO BE AN EXCITED GORILLA FOR MY BA.


Sun Nov 24, 2013 7:57 pm
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Storm Trooper
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Post Re: Help with college assignment please.
This is me getting my 2:2 BA:

Image

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turdy wrote:
Great tits and slow as fuck doom are Cromwell's Raison d'être.


Sun Nov 24, 2013 7:59 pm
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Super Trooper
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Post Re: Help with college assignment please.
If it was a BSc then you would be Richard Dawkins by now.


Sun Nov 24, 2013 8:00 pm
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Super Trooper
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Post Re: Help with college assignment please.
I have a useless BA also. As a wise man once said "It's only a piece of paper that you couldn't even wipe your arse on".


Sun Nov 24, 2013 9:15 pm
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Storm Trooper
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Post Re: Help with college assignment please.
Cromwell wrote:
Annihislater wrote:
I kind of feel it's the kind of thing I should know, but honestly I think my BSc should be a BA as I never really got the physics behind it all.


BSc >>>>> BA

We all know it, especially those of us with the latter.

I entirely agree with you, and am glad I did get a BSc, however it's shocking that I managed to pass a BSc degree with my shoddy lack of theory. It was all the compositions and practical tasks that saved me really.

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Sun Nov 24, 2013 11:50 pm
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Super Trooper
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Post Re: Help with college assignment please.
I fucking hate study. I'm getting so drunk when this assignment is finally done.


Sun Nov 24, 2013 11:57 pm
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Post Re: Help with college assignment please.

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Tue Nov 26, 2013 1:13 am
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