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nadya68 [22]
4 years ago
9

A certain spring has a stiffness of 50 N/m. A block of mass 2 kg is attached to the end of the spring. Find the damping coeffici

ent b and damping rate γ if the systern is critically damped.
Physics
1 answer:
Monica [59]4 years ago
3 0

Answer:

The damping coefficient is 20.

Explanation:

Given that,

Spring constant = 50 N/m

Mass of block = 2 kg

We need to calculate the damping coefficient

Using formula of damping coefficient

b = 2\sqrt{km}

b=2\sqrt{50\times2}

b=20

In case of critical damping the damping rate is 1

Hence, The damping coefficient is 20.

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Water is flowing in a pipe with a varying cross-sectional area, and at all points the water completely fills the pipe. At point
RideAnS [48]

Answer:

a) 2.33 m/s

b) 5.21 m/s

c) 882 m³

Explanation:

Using the concept of continuity equation

for flow through pipes

A_{1}\times V_{1} = A_{2}\times V_{2}

Where,

A = Area of cross-section

V = Velocity of fluid at the particular cross-section

given:

A_{1} = 0.070 m^{2}

V_{1} = 3.50 m/s

a) A_{2} = 0.105 m^{2}

substituting the values in the continuity equation, we get

0.070\times 3.50 = 0.105\times V_{2}

or

V_{2} = \frac{0.070\times 3.5}{0.150}m/s

or

V_{2} = 2.33m/s

b) A_{2} = 0.047 m^{2}

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or

V_{2} = \frac{0.070\times 3.5}{0.047}m/s

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c) we have,

DischargeQ = Area (A)\times Velocity(V)

thus from the given value, we get

Q = 0.070m^{2}\times 3.5m/s\

Q = 0.245 m^{3}/s

Also,

DischargeQ = \frac{volume}{time}

given time = 1 hour = 1 ×3600 seconds

substituting the value of discharge and time in the above equation, we get

0.245m^{3}/s = \frac{volume}{3600s}

or

0.245m^{3}/s\times 3600 = Volume

volume of flow = 882 m^{3}

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4 years ago
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Explanation:

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