biffyclyroisgod!
New member
we're doing telecommunications and i cannot understand any of it. i cant go in tomorrow without it complete because even if you miss out some of the answers, we have a really strict teacher that'll whoop our arses about the classroom (okay, maybe im exaggerating...but she is really strict.) i know this is "cheating", but me and my friends have done everything. we've sat and discussed it, we've shared answers, (which we've checked and all of them are completely wrong), anyway, its due for tomorrow and yahoo answers is muh last hope. pleeeeaaaase help? )':
oh, and can you please show the working, too? uhh, if you can do this you will be officially be e-god. ill even set up a website dedicated to you, if that is what e-god wishes :')
8a) how long does it take for sound to travel through 20km of air?
8b) how long does it take for sound to travel through 100km of air?
11) some water waves have a frequency of 2Hertz and a wavelength of 30cm. find their speed.
12) waves travelling at 12m/s have a wavelength of 5m/. calculate their frequency.
13) find the wavelength of waves which have a frequency of 300Hertz and which travel at a speed of 340 m/s.
14) water waves of frequency 12Hertz are travelling at 30m/s.
a) how many crests pass a point every minute?
b) what is the distance between successive crests?
seriously, dont mean to bribe you, but a whooooole website dedicated to you
?
why the fuck would i be kidding?
oh, and can you please show the working, too? uhh, if you can do this you will be officially be e-god. ill even set up a website dedicated to you, if that is what e-god wishes :')
8a) how long does it take for sound to travel through 20km of air?
8b) how long does it take for sound to travel through 100km of air?
11) some water waves have a frequency of 2Hertz and a wavelength of 30cm. find their speed.
12) waves travelling at 12m/s have a wavelength of 5m/. calculate their frequency.
13) find the wavelength of waves which have a frequency of 300Hertz and which travel at a speed of 340 m/s.
14) water waves of frequency 12Hertz are travelling at 30m/s.
a) how many crests pass a point every minute?
b) what is the distance between successive crests?
seriously, dont mean to bribe you, but a whooooole website dedicated to you
?why the fuck would i be kidding?