Two small metallic spheres with equal mass are suspended as pendulums by strings of length L. The sphereshave the same electric
charge and come to equilibrium with each string at an angle of Θ = 10.00° with the vertical. What happens if the electric charges are decreased?
A) Θ decrease
B) Θ increase
C) Θ remains the same
D) distant between spheres increases
A) Θ decrease
B) Θ increase
C) Θ remains the same
D) distant between spheres increases
1 answer:
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Answer:
The mass of the solution is 120 g.
Explanation:
The mass of the solution is given by:
Where:
: is the mass of the solution
: is the mass of the solvent
: is the mass of the solute
In the solution, the solvent is the majority compound (in mass) and the solute is the minority (in mass), so the solvent is the water and the solute is sodium chloride.
Hence, the mass of the solution is:
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Answer:
y = 0.1 m
Explanation:
The electrical power for point loads is
V = k Sum qi / ri
in this case
V = k ()
indicate that V = 0
r₂ =
the distance r1 is
r₁ = y -0
the distance r2
r₂ = 0.14 -y
we substitute
0.14 - y = y
y ( ) = 0.14
y 1.4 = 0.14
y = 0.14 / 1.4
y = 0.1 m