Recent content by HeLLz aNgeL

i don't get it... how'd you solve for the distance ? arctan doesn't work ..

guys, here's my question: A long solenoid has circular cross section of radius R. The solenoid current is increasing, and as a result so is the magnetic field in the solenoid. The field strength is given by B = bt, where b is a constant...

ahhh, it'll go down to zero ...thanks ! one more thing, when will the voltmeter read zero ? i'm thinking since it measures potential between two points it will be zero wherever there is a clear path between the two points: "D" ... sounds right ?

my bad, here it is: http://session.masteringphysics.com/problemAsset/1004655/20/187108B.jpg

anyone ?

Homework Statement In which diagram(s) (labeled A - D) does the ammeter correctly measure the current through the battery? The Attempt at a Solution I know that ammeters measure the current in series, and that the voltmeter won't have any effect on its reading, but I'm confused about the...

thanks a ton ! finally got it ... this one was a bugger ! thanks again...

so how do i get it to zero ? i mean keep on increasing distance till log of it = 0, and how do i write it in terms of beta ? :S

anyone ?

Homework Statement In general, if a sound has intensity of beta dB at 1 m from the source, at what distance d_0 from the source would the decibel level decrease to 0 dB? Since the limit of hearing is 1 dB this would mean you could no longer hear it. Express the distance in terms of beta. Be...

thanks ! finally figured it out...

i can't figure out how to find b ? the damping constant

did anyone get this problem ?? I've been trying to solve this and I am really confused :S

bump ... anyone ?

ok, so i know its Rsinwt(x) + RCoswt(y) and the initial position was just R(y) so, relative to the initial position it should be Rsinwt(x)+(R(y)-RCoswt(y)) doesnt sound right, does it ?