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erastova [34]
3 years ago
8

What is the wavelength of a 2.50-kilohertz sound

Physics
1 answer:
Alexxx [7]3 years ago
3 0
The formula v=fλ can be used here.

326=2500*λ

Note the 2500 as 2.5kHz is 2.5 thousand Hz.

λ = 326/2500
= 0.1304m = 0.130m
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3.1
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Answer:

The value is  C = 30729\  c

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From the question we are told that

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   The duration of its use everyday is t_1  = 70 \ minutes  = 1.167 \ hours    

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   The power rating of the total  bulb is  P_2 = 7 * 150 = 1050 \  W

    The duration of its use everyday is  t_2  = 7 hours

    The power rating of miscellaneous appliance P_3 = 1.8 \ KW = 1.8 *10^{3} \  W

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=> C = 30729\  c

8 0
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