Answer:
See below
Explanation:
Total distance covered while jogging = 20 + 5 = 25 m
in 15 sec speed is then 25 m / 15 s =<u> 1 2/3 m/s </u>
<u />
Displacement = 20 - 5 = <u>15 meters east</u>
Capacitance C of a parallel plate capacitor is C=Q/V, where Q is the charge on the plates and V is the potential difference between the plates. The potential of the capacitor is then: V=Q/C.
The capacitance C is given by the equation C=k*ε₀*(A/d) where k is the dielectric constant, ε₀ is the permittivity of free space, A is the surface of the plate and d is the distance between the plates.
For vacuum and air, k=1 so the capacitance is C=ε₀*(A/d).
But when we insert a dielectric between the plates like teflon which has k=2.1 at T=20°C the capacitance becomes:
C₁=k*ε₀*(A/d)=2.1*ε₀*(A/d)=2.1*C.
We can see that the capacitance increases by k=2.1 which is the dielectric constant of teflon.
So the voltage V becomes:
V₁=Q/C₁=Q/(2.1*C)=(1/2.1)*(Q/C)=(1/2.1)*V=0.48*V.
V₁=0.48*V.
Potential difference decreases by 0.48 because we inserted teflon between the plates.
when two waves superimposed then the resultant wave will have more energy and more intensity
It is because the resultant amplitude will be increased and given by the following equation
so here due to superposition since amplitude is increased so the energy or power of the wave will be increased
There is no effect on frequency , tension and density after superposition of waves and it will remain the same
SO energy is given as
here k = constant
A = amplitude
Answer:
Anions have more electrons than protons and so have a net negative charge. Cations have more protons than electrons and so have a net positive charge. Zwitterions are neutral and have both positive and negative charges at different locations throughout the molecule.
Explanation: