The force that will make this into
equilibrium would be equal to the force of equal amount yet applied on the
opposite direction.
<span>So we are given that a force of 55 N due west
was applied, so the equilibrium force would be 55 N due east.</span>
1 kilo-calorie= 4184 joules
0.001 kilo-calorie= 1 calorie
therefore 5.25 calorie=21.966 joules
Different poles : Attract
Similar Poles: Repulse
For the two upper magnets ( 1, 4 ) N-S , N-S ( so attraction )
For the two lower (2,3) S-S S-S ( repulsion )
Considering this case:
F = kQ1Q2/r^2 (coulomb law)
So F is inversely proportional to the distance so the more near the magnet to the main one , the more force it experiences.
Magnet 2 experiences the greatest repulsion force.
Answer:
Final energy = Uf = initial energy × d₂/d₁
Explanation:
Energy is the ability to do work.
capacitor is an electronic device that store charges
where
V is the potential difference
d is the distance of seperation between the two plates
ε₀ is the dielectric constant of the material used in seperating the two plates, e.g., paper, mica, glass etc.
A = cross sectional area
U =¹/₂CV²
C =ε₀A/d
C × d=ε₀A=constant
C₂d₂=C₁d₁
C₂=C₁d₁/d₂
charge will 'q' remains same in the capacitor, if the capacitor was disconnected from the electric potential source (v) before the separation of the plates was replaced
Energy=U =(1/2)q²/C
U₂C₂ = U₁C₁
U₂ =U₁C₁ /C₂
U₂ =U₁d₂/d₁
Final energy = Uf = initial energy × d₂/d₁
Answer:
False
Explanation:
There is less pressure higher in the atmosphere, which means that air will expand, and thus cool
