Answer:
configuration of string:
Node - Antinode - Node or N-A-N
This is 1/2 wavelength since a full wavelength is N-A-N-A-N
f (fundamental) = V / wavelength
F0 = 300 m/s / 1 m = 100 / sec
F1 = 300 m/s / .5 m = 600 / sec
Each increase is a multiple of the fundamental since the wavelength
increases by 1/2 wavelength to keep nodes at both ends of the string
I couldnt type it out so here's a picture
13 is the mode because it is the number that appears most often
:)
The technician A is correct. The current should be 20% or any given percentage lower than the current for which the fuse is created.
The technician B argues that orange blade fuses have a 9 Amp rating. But they usually have a 40A rating
