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Westkost [7]
3 years ago
6

20 points please helppp me I’m begging u this is due soon please come on ????? Anyone

Physics
2 answers:
Slav-nsk [51]3 years ago
7 0

Answer:

Gases are element .We can change the state of matter by the process of melting,evaporation,sublimation,freezing,condensation.

Virty [35]3 years ago
3 0
Ice can be melted at 0 degrees celsius and become water, water can boil at 100 degrees celsius and become a gas (plz give me brainliest)
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The sound source of a ship’s sonar system operates at a frequency of 22.0 kHz . The speed of sound in water (assumed to be at a
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Answer:

147.456077993 Hz

Explanation:

f_0 = Frequency of the sonar = 22 kHz

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The difference in frequency is given by

\Delta f=f_0\times\dfrac{2v_{w}}{v-v_w}\\\Rightarrow \Delta f=22000\times\dfrac{2\times 4.95}{1482-4.95}\\\Rightarrow \Delta f=147.456077993\ Hz

The difference in frequency is 147.456077993 Hz

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