Answer:
EMF = 187.5 volts
Explanation:
As per Faraday's law of electromagnetic induction we know that rate of change in the flux will induce EMF
so we can say
now we will have
So the induced EMF in the coil will be 187.5 Volts
C. Forces act in pairs, so when the red ball pushes the blue ball forward, the the blue ball exerts an equal and opposite force on the red ball.
Answer:
U_total = 3.51 10⁻¹ J
Explanation:
The electic potential energy is
U = ∑ k qi qj / rij
Where k is the Coulomb constant 8.988 109 N m² / C², q are the electric charges and r is the distance between them
Let's apply this equation to our case
Total U = U₁₂ + U₁₃ + U₂₃
The distance between them is the length of the triangle L= 0.3 m, the charge are equal q = 1.40 10⁻⁶ C
U₁₂ = k q₂ / L
All energies are equal for this case, we substitute in the total potential energy
U_total = 3 (k q² / L)
U_total = 6 k q² / L
We calculate
U_total = 6 8,988 10⁹ (1.40 10⁻⁶)² / 0.3
U_total = 3.51 10⁻¹ J
Can you show a picture please
Aristotle believed that the Earth was orbited by the sun, moon, and the other planets which he referred to as Celestial Bodys