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Aliun [14]
3 years ago
8

Which type of electromagnetic wave has the longest wavelength

Physics
1 answer:
balu736 [363]3 years ago
5 0

Answer

Using the formula of wavelength

\lambda = \dfrac{c}{f}

From the above expression, we can see that the wavelength is inversely proportional to frequency.

For wavelength to be the longest frequency should be minimum.

Radio wave has the lowest frequency i.e. 10⁴ so, the wavelength of radio-wave will be maximum.

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2 years ago
A circular loop of wire lies flat on a level table top in a region where the magnetic field vector points straight upward. The m
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3 years ago
A 790kg car moving at 7 m/s takes a turn around a circle with a radius of 20 m. Determined the net force (in Newton’s) acting up
prisoha [69]

1935.5 N is the "net force" acting on a car.

<u>Explanation</u>:

Given that,  

Mass of the car is 790 kg.

Velocity of the car is 7 m/s. (v)

It turned around with 20 m. (r)  

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\text { Here, acceleration of the car is radial acceleration } a_{\mathrm{rad}}=\frac{v^{2}}{r}

\mathrm{a}_{\mathrm{rad}}=\frac{7^{2}}{20}

\mathrm{a}_{\mathrm{rad}}=\frac{49}{20}

a_{\text {rad }}=2.45 \mathrm{m} / \mathrm{s}^{2}

Now, Net force = m × a

Net force = 790 × 2.45

Net force = 1935.5 N

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3 years ago
Describe the shape of a convex lens and explain what it does to light.
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expain why different atoms of the same element always have the same atomic number but can have different mass numbers what are t
anzhelika [568]
The atomic number tells you the number of protons in an atom. This value never changes because the number of protons in the nucleus always remains constant. The mass number tells you the number of protons and neutrons (or nucleons) together: protons + neutrons = mass number. Since the number of neutrons in the nucleus varies, you can have different amounts of neutrons in the same type of atom. These varied types are called isotopes.

Hope this helps.
4 0
2 years ago
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