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Wittaler [7]
3 years ago
5

What is newton's second law of motion?

Physics
1 answer:
lord [1]3 years ago
3 0

Answer:

Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

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Answer:

The wavelength of the station’s signal is 2.9 meters

The energy of a photon of the station’s electromagnetic signal is 6.9\times10^{-26}J

Explanation:

Wavelength \lambda is inversely proprtional to frequency (f) and directly proportional to velocity of the wave (v).

\lambda=\frac{v}{f} (1)

But electromagnetic waves as radio signals travel at speed of light so using this on (1):

\lambda=\frac{c}{f}=\frac{3.0\times10^{8}}{104.5\times10^{6}}\approx2.9\,m

Albert Einstein discovered that energy of electromagnetic waves was quantized in small discrete packages of energy called photons with energy:

E=hf=(6.6\times10^{-34})(104.5\times10^{6})\approx6.9\times10^{-26}J

with h the Planck's constant.

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