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allochka39001 [22]
2 years ago
5

Based on the images seen here, identify which phase of matter would transmit sound waves the fastest, and why?

Physics
2 answers:
Aleks [24]2 years ago
8 0
Nah answer A I promise
sleet_krkn [62]2 years ago
5 0
C because gas flow super quick
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A rectangular sharp-crested weir is contracted on both sides, and the opening is 1.2 m wide. At what height (Hw) should it be pl
Alex

Answer:

H_w = 2.129 m

Explanation:

given,

Width of the weir, B = 1.2 m

Depth of the upstream weir, y = 2.5 m

Discharge, Q = 0.5 m³/s

Weir coefficient, C_w = 1.84 m

Now, calculating the water head over the weir

Q = C_w BH^{3/2}

H = (\dfrac{Q}{C_wB})^{2/3}

H = (\dfrac{0.5}{1.84\times 1.2})^{2/3}

H = 0.371\ m

now, level of weir on the channel

H_w = y - H

H_w = 2.5 - 0.371

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