Answer:
a)
b)
Explanation:
From the question we are told that:
Distance between wires 
Wire 1 current 
Wire 2 current
a)
Generally the equation for Force on
due to
is mathematically given by

Where
B_2=Magnetic field current by 

Therefore




b)
Generally the equation for Force on
due to
is mathematically given by

Where
B_1=Magnetic field current by 

Therefore


I believe the answer is 40,000 Hz to 100,000 Hz
Answer:
the fraction of submerged volume is equal to the ratio of the densities of the body between the density of the fluid.
Explanation:
This is a fluid mechanics problem, where as the boat is in equilibrium with the pushing force we can write Newton's second law
B- W = 0
B = W
the thrust force is equal to the weight of the liquid that is dislodged
B = ρ g V
we substitute
ρ g V = m g
V = m /ρ_fluid 1
we can write the mass of the pot as a function of its density
ρ_body = m / V_body
m = ρ_body V_body
V_fluid / V_body = ρ_body / ρ _fluid 2
Equations 1 and 2 are similar, although 2 is easier to analyze, the fraction of submerged volume is equal to the ratio of the densities of the body between the density of the fluid.
The effect appears the pot as if it had a lower apparent weight
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