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3 years ago

El aspa de un ventilador de 0.30 m de diametro gira 1200 rev/min. calcule la rapidez tangencial.

Physics

1 answer:

Keith_Richards [23]3 years ago

4 0

Answer:

v = 18.84 m/s

Explanation:

Let the question says,"The blade of a 0.30 m diameter fan rotates 1200 rev / min. calculate the tangential speed."

It is given that,

Diameter of a blade of fan is 0.3 m

Angular velocity of the fan is 1200 rev/min or 125.66 rad/s

We need to find the tangential speed of the fan. The relation is given by :

$v=r\omega$

r is radius of fan

$v=0.15\times 125.66 \\\\v=18.84\ m/s$

So, the tangential velocity is 18.84 m/s.

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Answer:

As given in the problem statement

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3 years ago

Alarge plate is fabricated from a steel alloy that has a plane strain fracture toughness of 82.4 MPa m1/2. If the plate is expos

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Answer:

minimum length of a surface crack is 18.3 mm

Explanation:

Given data

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stress σ = 345 MPa

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to find out

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solution

we will calculate length by this formula

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length = 18.3 mm

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3 years ago

Two high-current transmission lines carry currents of 29.0 A and 78.0 A in the same direction and are suspended parallel to each

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Answer with Explanation:

We are given that

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$I_2=78 A$

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