A 25D-kg weight is hanging from the ceiling by a thin copper wire. In its fundamental mode, this wire vibrates at the frequency of concert A (440 Hz). You then increase the temperature of the wire by 40 Co.
(a) By how much will the fundamental frequency change? Will it increase or decrease?
(b) By what percentage will the speed of a wave on the wire change?
(c) By what percentage will the wavelength of the fundamental standing wave change?
(d) Will it increase or decrease?