calculate the energy dissipated by an electric iron which draws a current of 5A from a240v power supply for 25minutes
1 answer:
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C. longest wavelength
Explanation:
Photons with the lowest energy have the longest wavelength and the shortest frequency.
The energy of photons is given as:
E = hf =
where f is the frequency of photon
h is the planck's constant
∧ is wavelength
c is the speed of light
The more the frequency, the higher the energy of the photon.
Photons with low energy have long wavelength.
Learn more:
Wavelength brainly.com/question/6352445
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Answer:
F = 144 units
Explanation:
For this exercise we use coulomb's law, for the initial conditions
F₀ =
indicate that the force F₀ = 36.0 units and the distance is reduced to r = r₀/2 which is the new force
F =
we substitute
F = 4
F = 4 F₀
we calculate
F = 4 36
F = 144 units