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3 years ago

14

A "scale" is constructed with a 4-ft-long cord and the 10-lb block D. The cord is fixed to a pin at A and passes over two small

pulleys at B and C. Determine the weight of the suspended block E if the system is in equilibrium when s= 1.5 ft.

1 answer:

Anarel [89]3 years ago

8 0

Answer:

attached below

Explanation:

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Take water density and kinematic viscosity as p=1000 kg/m3 and v= 1x10^-6 m^2/s. (c) Water flows through an orifice plate with a

guapka [62]

Answer:

$K_v=12.34$

Explanation:

Given;

For orifice, loss coefficient, K₀ = 10

Diameter, D₀ = 45 mm = 0.045 m

loss coefficient of the orifice, Ko = 10

Diameter of the gate valve, Dy = 1.5D₀ = 1.5 × 0.045 m = 0.0675 m

Total head drop, Δhtotal=25 m

Discharge, Q = 10 l/s = 0.01 m³/s

Now,

the velocity of flow through orifice, Vo = Discharge / area of the orifice

or

Vo = $\frac{0.01}{\frac{\pi}{4}0.045^2}$

or

Vo = 6.28 m/s

also,

the velocity of flow through gate valve, $V_v$ = Discharge / area of the orifice

or

$V_v$ = $\frac{0.01}{\frac{\pi}{4}0.0675^2}$

or

$V_v$ = 2.79 m/s

Now,

the total head drop = head drop at orifice + head drop at gate valve

or

25 m = $K_o\frac{V_o^2}{2g}+K_v\frac{V_v^2}{2g}$

where,

$K_v$ is the loss coefficient for the gate valve

on substituting the values, we get

25 m = $10\frac{6.28^2}{2\times 9.81}+K_v\frac{2.79^2}{2\times9.81}$

or

$K_v\frac{2.79^2}{2\times9.81}$ = 4.898

or

$K_v=12.34$

3 0

4 years ago

An inside measurement can be taken with a tape measure by

Cerrena [4.2K]

This is about method of taking inside measurement with a tape.

<u><em>Option A is the correct answer.</em></u>

Inside measurement is usually taken with the aid of an inside micrometer. This will give us an exact measurement. This is because when making use of an inside micrometer for inside measurement, the total length of the inside micrometer is equal to the overall length of whatever is being measured.

We have seen how the inside micrometer is used whereby the entire body is also included in whatever is being measured. Applying this same concept to using a tape, we can simply say that we will add the tape length to the measuring case to get the inside measurement.

From the definitions and comparisons above, we can see that we will have to add the length of the tape measure case when taking inside measurements and other options aside Option A are not correct.

Read more at; brainly.com/question/12709703

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3 years ago

When discussing universal joints,

g100num [7]

Answer:

B only

Explanation:

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4 years ago

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4vir4ik [10]

Answer:

b

Explanation:

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3 years ago

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12. Which of the following letter doesn't still the same when its viewed

Mashcka [7]

Answer:

the correct answer is option B. W

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3 years ago

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