I have a final exam tomorrow and the professor gave usthederivation sheet early that has all of the needed equations.Iunderstand them all except one involving standing waves, thisiswhat's given:
ystanding (x,t) = [const.] à sin(kx +Φ1)sin(Ït + Φ2)
I'm used to the equation: y' (x, t) = [2ym sin(kx)]Ãcos(Ït). I do not understand three things, what"[const.]" means(constant or constructive?) and why are wemultiplying 2 differentsines (as opposed to sine and cosine, likethe other equation?) Ialso do not understand what's theamplitude in that equation(ym.) (Obviously), trig isnot my strong suit, so pleaseprovide the identity, if one isneeded, thanks!! Like I said, It'stomorrow (5/13) so the soonerthe better! I will rate lifesaver forthe first response thatproperly answers my question!
I have a final exam tomorrow and the professor gave usthederivation sheet early that has all of the needed equations.Iunderstand them all except one involving standing waves, thisiswhat's given:
ystanding (x,t) = [const.] à sin(kx +Φ1)sin(Ït + Φ2)
I'm used to the equation: y' (x, t) = [2ym sin(kx)]Ãcos(Ït). I do not understand three things, what"[const.]" means(constant or constructive?) and why are wemultiplying 2 differentsines (as opposed to sine and cosine, likethe other equation?) Ialso do not understand what's theamplitude in that equation(ym.) (Obviously), trig isnot my strong suit, so pleaseprovide the identity, if one isneeded, thanks!! Like I said, It'stomorrow (5/13) so the soonerthe better! I will rate lifesaver forthe first response thatproperly answers my question!
