Recent content by Sucks@Physics

Homework Statement A box of 10 flashbublbs contains 3 defective bublbs. A random sample of 2 is selcted and tested. Let X be the radom variable associated with the number of defective bulbs in the sample. A) Find the probability distribution of X. B) Find the expected number of...

So it has maximum velolcity at the equilibrium so just plug in "0" instead of .05 and i get 2.7 m/s, this sounds reasonable. Is this correct?

ok so v = sqrt(80n/m/.25kg)*(.15^2-.05^2) = 2.5 m/s and it would be that same for -.05 because -.05^2 = .05^2. But how would u find the maximum speed and where is it occurring?

this is one of my last questions and I've been trying ot figure it out for like 2 hours now, please help

bah, i don't understand. is the A = to 1 since its between .05 and -.05? and also how do you solve for t?

lol nevermind, i when iw as puttin it into my calculator i was typing in "1/2pi" and it was divide by 2 then multiply by pi. so I had t put parenthesis around it. I was wondering why it wasn't working...

(T^2)/2*pi*k = m doesn't work (T/2*pi)^2*k = m doesn't work either

T= 2*pi*sqrt(m/k) I try to solve for m, but the numbers are not coming out right, can someone help me?

Ok i got omega by omega = sqrt(80n/m/.25kg) = 17.889 but I can't figure out how to get A.

Homework Statement A .25kg object suspended on a light spring is released form a postition of .15m above the stretched equilibrium position. THe spring has a spring constatnt of 80N/m. What is the speed of the object when the object is .05m above its equilibrium position? What is the...

oh sweet, i got it thanks!

Thanks, that is kinda tricky, but now i understand it

No, i still can't ge thte correct equation, i come up with something like (10x10^B)/Io

I'm trying to find the intensity of something. I know the equation is B = 10log(I/Io) But how to I solve for I? What would the equation be? For some reason I can't make it work.

ok so omega = sqrt*k/m then multiply omega x A to get max speed? But i get a very small number and I know it's not correct, what am I doing wrong?