Stuck on AP Physics. Need Help with Sines or Cosines

Thread starter doughrtyHT
Start date Sep 9, 2004
Tags

Ap Ap physics Physics Stuck

AI Thread Summary

The discussion centers on a user seeking help with AP Physics, specifically regarding the law of sines and the law of cosines. The user expresses uncertainty about these concepts while working on an independent study. Another participant suggests posting the specific problem for better assistance but the original poster later indicates they found the information elsewhere. The conversation highlights the importance of these mathematical laws in solving physics problems. Overall, the thread underscores the collaborative nature of seeking help in academic subjects.

Sep 9, 2004

doughrtyHT

I am doing a sort of independent study of AP physics and I ran across a question that I am pretty sure requires either the law of sines or the law of cosines but I can't remember them, can anyone help me out?
Thanks,
HT

Physics news on Phys.org

Sep 9, 2004

decibel

maybe you could post the problem?...by any chance?...so maybe we could help you?...just maybe?

Sep 9, 2004

doughrtyHT

never mind I got them somewhere else

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...

View full post »

Thread 'A cylinder connected to a hanging mass'

Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...

View full post »

Thread 'Explain this asphalt sheen'

This problem is two parts. The first is to determine what effects are being provided by each of the elements - 1) the window panes; 2) the asphalt surface. My answer to that is The second part of the problem is exactly why you get this affect. And one more spoiler:

View full post »