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nordsb [41]
3 years ago
5

How should scalar symbols be written? A. in bold type B. in italic type C. with an arrow on top D. in bold type or with an arrow

on top
Physics
1 answer:
Gemiola [76]3 years ago
8 0
D is the correct answer..........
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A 2 m tall, 0.5 m inside diameter tank is filled with water. A 10 cm hole is opened 0.75 m from the bottom of the tank. What is
valina [46]

Answer:

4.75 m/s

Explanation:

The computation of the velocity of the existing water is shown below:

Data provided in the question

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Inside diameter tank = 2m

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Bottom of the tank = 0.75 m

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= 2 - 0.75 - 0.10

= 2 - 0.85

= 1.15 m

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1. Compressible flow

2. Stream line followed

Now applied the Bernoulli equation to section 1 and 2

So we get

\frac{P_1}{p_g} + \frac{v_1^2}{2g} + z_1 = \frac{P_2}{p_g} + \frac{v_2^2}{2g} + z_2

where,

P_1 = P_2 = hydrostatic

z_1 = 0

z_2 = h

Now

\frac{v_1^2}{2g} + 0 = \frac{v_2^2}{2g} + h\\\\V_2 < < V_1 or V_2 = 0\\\\Therefore\  \frac{v_1^2}{2g} = h\\\\v_1^2 = 2gh\\\\ v_1 = \sqrt{2gh} \\\\v_1 = \sqrt{2\times 9.8\times 1.15}

= 4.7476 m/sec

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square root (29 squared - 20 squared)

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