Physics: Manitude of Surface Charge on Dielectric
If the electric susceptibility κ=4.5, electric permittivity is ε = κ+1 = 5.5 C₁=q₁/V, q₁=C₁V=1.86•10⁻⁶•12=2.23•10⁻⁵ C, C₁=ε₀A/d = q₁/V, C₂=εε₀A/d = q̀...
Physics: Capacitance of Capacitor
Q₁=Lf•m = C₁V²/2 Q₂=Lv•m = C₂V²/2 Lf•m/ Lv•m=2C₁V²/2 C₂V² C₂=Lv•C₁/Lf = 22.6•10⁵•8/33.5•10⁴= 53.97 μF
Physics: Potential Difference
C₂=kC₁ Energy = CV²/2 C₁V₁²/2=C₂V₂²/2 V₂=V₁/√(k)=15/√(3.6) = 7.9 V
Physics: Dielectric Constant
C=εε₀A/d ε=Cd/ε₀A = =9.1•10⁻⁶•1.5•10⁻⁵/8.85•10⁻¹²•2 =7.7.
la porte high school
h= gt²/2, t=2h/g=2•12/9.8=2.45 s s=v•t = 15•t=15•2.45 = 36.7 m
physical
m=ρV=ρπr²h=1950•π•0.051²•0.003=0.048 kg
physics
The law of conservation of linear momentum m₁v₁- m₂v₂=(m₁+m₂)u u={m₁v₁- m₂v₂}/(m₁+m₂)
physics
F=kx k=F/x W=ΔPE= kx²/2=Fx²/2x= Fx/2=20•0.05/2=0.5 J
Physics
F=0 if E = 0 The point is located to the right from the second charge at the distance ‘x’ => kq₁/(X+x)² =kq₂/x² X=1 64/(1+x)² = 16/ x², 3x²-2x-1 =0 , x={2±sqrt(4+12)}/6. x₁=1, x₂=-1/3 (※) Ans: Coordinat...
physics
Use Right Hand Rule
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