Answer:
M= -0.51
Explanation:
After i calculated my v to be -5.2cm from the formula 1/f=1/v+1/u
Then m=v/u which is -0.51
the sphere is solid and conducting, so the charge is uniformly distributed over its volume.
Amplitude
2.9s
1372
use the speed formula
Speed=wavelength x frequency
A and D