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m_a_m_a [10]
3 years ago
8

What is the wavelength of electromagnetic radiation having a frequency of 5.00 x 10 to the power of 12??

Physics
1 answer:
kondaur [170]3 years ago
8 0
Velocity=wavelength * frequency
wavelength=velocity/frequency=3*10^8/5*10^12=6*10^-5

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3 years ago
I need some help w/ this:
pochemuha

Answer:

The velocity of the police car is, v = 17.798 m/s

Explanation:

Given data,

The actual frequency of the siren, f = 2010 Hz

The observed frequency of siren is, f' = 2120 Hz

The velocity of the observer, v' = 0 m/s

The velocity of the source, v = ?

The formula for Doppler effect,

                            f'=\frac{(V+v')}{(V-v)}f

Where,

                         V - velocity of sound waves in air.

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Substituting the given values,

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Hence, the velocity of the police car is, v = 17.798 m/s

5 0
3 years ago
The current in a hair dryer measures 11 amps. The resistance of the hair dryer is 12 ohms. What is the voltage?
Valentin [98]

Voltage is given by the formula

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V = IR

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The total of 8 and 13
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The total is 21. If you use a calculator or count with your fingers it can help make the answer easier so in the end you will get 21 as your total.


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3 years ago
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