Acopper
wire, whose cross-sectional area is 1.1 x 10-6
m2has a linear density of 7.0 x 10-3 kg/m and
is sturngbetween two walls. at the ambient temperature,
atransverse wave travels with a speed of 46 m/s on
thiswire. the coefficient of
linearexapansion for copper is 17 x
10-6(c)-1 and young's modulus for copperis
1.1 x 1011 n/m2. what will be the speed of the wave
whenthe temperature is lowered by 14 c? ignore any changein
the linear density caused by the change in temperature.

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z

Select light for the type of wave, adjust the wavelength so that the light is red, and increase the amplitude of the light to the max. then, select the start button at the source location to begin producing the waves. light is a form of electromagnetic wave, containing oscillating electric and magnetic fields. the wave amplitude detector mentioned above shows how the electric field oscillates in time at the location of the probe. the amplitude of the wave at the location of the probe is equal to the maximum electric field measured. how does the amplitude of the wave depend on the distance from the source?