Answer:
The new Coulomb force is q₁q₂/9πε₀r²
Explanation
The coulomb force between the two charges q₁ and q₂ at a distance r in air is given by F = q₁q₂/4πε₀r².
Now, let us assume the material of dielectric constant κ = 9 is placed between them on the side of the q₁ charge. The value of its effective charge is now q₃ = q₁/κ at a distance of d = r/2 from the q₂ charge.
Since we have air between q₂ and q₃, the coulomb force between them is
F' = q₂q₃/4πε₀d²
= q₂(q₁/κ)/4πε₀(r/2)²
= 4q₂q₁/κ4πε₀r²
= 4/κ(q₂q₁/4πε₀r²)
= 4/9 × (q₂q₁/4πε₀r²)
= q₁q₂/9πε₀r²
So, the new Coulomb force is q₁q₂/9πε₀r²
We determine the electric potential energy of the proton by multiplying the net electric potential to the charge of the proton. The net electric potential is the difference of the final state to the that of the initial state. So, it would be 275 - 125 = 150 V.
electric potential energy = 150 (<span>1.602 × 10-19) = 2.4x10^-17 J</span>
Answer: At the molecular level, temperature is related to the random motions of the particles (atoms and molecules) in matter. ... The temperature of the puddle, or of any object, is a measure of the average of the individual translational energies of all of its atoms or molecules.
Explanation: my science teacher already tought us this
Answer:
The fatel voltage is 100 volts.
Explanation:
Given that,
Current passes near the heart is, 
An electrician working with sweaty hands makes good contact with the two conductors he is holding, one in each hand.
Resistance, R = 2000 ohms
We need to find the fatal voltage. It can be calculated using Ohm's law as :
So, the fatel voltage is 100 volts. Hence, this is the required solution.
We know, f = ma
Here, m = 100 kg
a = 20 m/s²
Substitute their values,
f = 100 * 20
f = 2000 N
In short, Your Answer would be 2000 N
Hope this helps!
