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Cloud [144]
3 years ago
7

An electromagnetic wave has a wavelength of 1.3m what is the frequency of wave

Physics
1 answer:
larisa86 [58]3 years ago
6 0
V = f * wavelength
as we know electromagnetic wave has speed equal to light, so

3 * 10^8 = f * 1.3
f = 2.3 * 10^8 hertz
f = 230 mega hertz
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A. Time Division multiple Access (TDMA)

Explanation:

Time-division multiple access (TDMA) is a channel access method for shared-medium networks

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Tony has a mass of 50 kg, and his friend Sam has a mass of 45 kg. Assume that both friends push off on their rollerblades with t
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What is the equivalent resistance of a circuit that contains two 50.0 32
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82ohms

Explanation:

The equivalent resistance in the circuit is 82ohms

Given parameters:

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Unknown:

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Solution:

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Resistors are usually connected in circuit and in series arrangement.

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4 years ago
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In this circuit the battery provides 3 V, the resistance R1 is 7 Ω, and R2 is 5 Ω. What is the current through resistor R2? Give
sveta [45]

Answer:

The current pass the R_2 is  I  = 0.25 A

Explanation:

The diagram for this question is shown on the first uploaded image  

From the question we are told that

    The voltage  is  V =  3V

     The first resistance is  R_1 = 7 \Omega

     The second resistance is  R_2 = 5 \Omega

Since the resistors are connected in series their equivalent resistance is  

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Substituting values

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Since the resistance are connected in serie the current passing through the circuit  is the same current passing through R_2 which is mathematically evaluated as

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