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3 years ago

The figure angle c measures 38°

Engineering

1 answer:

Elanso [62]3 years ago

4 0

The figure c measures 38• so it would be an angle of 48 and a degree of 67

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Answer:

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3 years ago

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2 years ago

A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls

Inessa05 [86]

Answer:

the percent increase in the velocity of air is 25.65%

Explanation:

Hello!

The first thing we must consider to solve this problem is the continuity equation that states that the amount of mass flow that enters a system is the same as what should come out.

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Now remember that mass flow is given by the product of density, cross-sectional area and velocity

(α1)(V1)(A1)=(α2)(V2)(A2)

where

α=density

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Now we can assume that the input and output areas are equal

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Now we can use the equation that defines the percentage of increase, in this case for speed

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Now we use the equation obtained in the previous step, and replace values

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3 years ago