Answer:
Explanation:
Given
density 
diameter 
Magnetic field 
Force on the current carrying conductor placed in a magnetic field

where L=length of conductor
=angle between magnetic field and current
If the wire is floating then weight must be balanced by weight of wire

Therefore




The formula v=fλ can be used here.
326=2500*λ
Note the 2500 as 2.5kHz is 2.5 thousand Hz.
λ = 326/2500
= 0.1304m = 0.130m
The further the planet is from the sun the smaller the year is
The mosquito exerts the same force on the car as the car exerts on the mosquito.