F I’m not sure if I’m right but I think the answer is F
Answer:
C
Explanation:
because it is and it doesn't have to be in the indirect dialog
The magnetic force on a moving charge, depends on three four things: the magnitude of the charge, the velocity of the charge, the strength of the magnetic field, and the angle between the velocity and the magnetic field.
Answer:
i

ii

iii1 )

iii2)

iii3)

Explanation:
From the question we are told that
The length of the string is 
The tension on the string is 
The mass per unit length is 
The speed of wave on the string is mathematically represented as

substituting values


generally the string's frequency is mathematically represented as

n = 1 given that the frequency we are to find is the fundamental frequency
So
substituting values


The frequencies at which the string would vibrate include
1 
Here
is know as the second harmonic and the value is


2

Here
is know as the third harmonic and the value is


3

Here
is know as the fourth harmonic and the value is


I think the answer would be b