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6. In simple harmonic motion, the speed is greatest at that point in the
cycle when
a. the magnitude of the acceleration
is a maximum
b. the displacement
is a maximum
,,(JO q~o
@ the magnitude of the acceleration is a minimum
d. the potential energy is a maximum .,t X~O V::;V~. 7. a. -1
b. 1 @;
8. 1A-IfI d14Y1$..::: L
V L.1'r F", K" ~ kll U ~ f< ::;;
E
of ~ { 10. f;kk - Jf. 2
~ 1-1 - i ;J
~ f =-i:,kfl, ::-3 One of the harmonics of a string fixed at both ends has a 1requency of
52.2 Hz and the next higher harmonic has a frequency of 60.9 Hz. What is
the fundamental frequency of the string?
~
26.1 Hz
(9) 8.7 Hz
J
=
c. 30.4 Hz
Y1
lL
d. 17.4 Hz
.- V
The pitch of a sound
a. the amplitude
b. the speed
(§) the frequency
d. the wavelength is / determined by 7 t;-fl- f, = I(t) <=> V in [n-+ ( -nl iL' - - U- - l 7".;/ --f.. .:60.j-52.L
fI 5"<)r711~ A position of stable equilibrium corresponds to the point on a potential energy curve where the
potential energy function Vex)
a. has a positive
b. has a negative
c. is a maximum
~
is a minimum 11. . fk {4f~ H tlcA- '- £~ nY- 9. I~:: The ratio of the kinetic energy to the potential energy of a simple
harmonic oscillator ~hen its displacement
is half its amplit~de is ~_ slope
slope A harmonic wave travels with a speed of 200 mls and has a wavelength
0.80 m. What is the frequency of the 'wave?
a. 40 Hz
b. 125 Hz
~
80 Hz
C;J250
Hz - of ...

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