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A steel wire having a mass of 3.50 g and a length of 1.00 m is fixed at both ends and has a tension of 1010 N.
(a) Find the speed of transverse waves on the wire.
m/s
(b) Find the wavelength of the fundamental.
m
(c) Find the frequency of the fundamental.
Hz
(d) Find the frequency of the second harmonic.
(e) Find the frequency of the third harmonic.
A 240g block on a 60cm-long string swings in a circle on a horizontal, frictionless table at 70rpm.
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a metallic surface is illuminated with light of wavelength 400 nm if the work function for this metal is 2.487 eV what the velocity of the ejected electrons would be
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