Recent content by iamamn

Homework Statement Although the image in a television screen appears to change smoothly, it consists of 25 separate pictures every second. The production of a flicker free image is helped by: (i) PERSISTANCE OF SCREEN GLOW (ii) PERSISTANCE OF AN IMAGE ON THE EYE Explain how each of...

Well thank you very much Hootenanny :D You have been a very big help to my homework and my knowledge :D THANK YOU xo

Would the anwser be 2 m/s ? :S

AH! So simple really. i can't believe i couldn't get that :D. So for the other question, when the stone is dropped ... Do i use the frequency solution to find that out? but if i do it doesn't really work out if its asking for speed of the waves. would the anwser be 2 meters per...

OK. :D Well the examples we got in school were: if a wave has a frwency of 50Hz - whatt's its period? and i came up with: T = ? F = 50hz T=1/F T = 1/50 = 0.02s and if a wave has a period of 5z - what's its frquency? F = ? T = 5s F = 1/T F = 1/5 = 0.20 Hz and frequency is...

Right, I am new here and i am really stuck on my homework. Wandering if you could help me :D lol anyways, [FONT="Arial Black"][SIZE="4"]a loudspeaker vibrates at a frequency of 256 herts to produce a note we call middle c. (a) how many waves does it produce in one second (b) how many...