Recent content by thingy

Ok, now I'm trying f'= fsourcecosA/v so: f' = 2.8 (23.3cos42)/340= 0.143 ... which is wrong, but it's the closest I've got so far. Am I at least on the right track?

Thanks guys, although I'm still a little confused. I can work out the values, but I'm not sure what to do with them- it's like trying to piece together a jigsaw puzzle without the picture on the box lid. Any more clues? Your answer is probably right- all the values were probably rounded to 3...

Doppler Effect- Observer On Angle To Source Plz help- I've been working on this for 2 days and I'm down to my last teaspoon of coffee powder. Even having the answer didn't help! I think sleepness is turning me into a zombie :eek: ...prehaps eating brains will help me solve this problem...