1. At the laboratory, a guitar string is attache to a !rong o" a
tuning "or# that $ibrates at
120%z. At the other en, the string !asses o$er a !ulley an
su!!orts a 0.&'#g mass. (he
linear mass ensity o" the ro!e is 0.00& #g)m. *in:a. the
s!ee o" a trans$erse +a$e on the ro!e.b. the +a$elength.c. changes
in a- i" the mass +ere increase to 0.&'#g.. changes in b- i"
the mass +ere increase to 0.&'#g.
2. A sinusoial +a$e mo$ing through a /0.0'm long !i!e an going
to the '- 'irection has
a $elocity o" /00m)s an a +a$elength o" .00/m. t +as also
obser$e that it has a
maimum height ten times o" its +a$elength an that at t0, 0, the
is!lacement y
0. *in:
8/19/2019 Physics 2A - Prelim Quiz 2A
2/2
a. am!litueb. "re3uencyc. !ro!agation constant. angular
"re3uencye. +a$e "unction in terms o" an t". +a$e e3uation at one
en o" the !i!e +here the +a$e starteg. +a$e e3uation at one en o"
the !i!e +here the +a$e eneh. +a$e "unction in terms o" an t o" its
re4ecte +a$ei. +a$e "unction o" the staning +a$e o" the incient an
re4ecte +a$e.
