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Aleksandr-060686 [28]
3 years ago
10

1. Adrian has a rectangular block with the dimensions 3.5 in by 8.0 in by 5.5

Chemistry
1 answer:
miskamm [114]3 years ago
8 0

Answer:

The density of the block is 2.827 grams/ cubic inch

Explanation:

The density of the block can be obtained by dividing the given mass of the block by its volume.

Density = mass / volume

The mass of the block given is 435.5 grams

The volume of the block can be obtained by using the formula:

Volume = Length X breadth X height

Volume = 3.5 X 8 X 5.5 = 154 in^3

There fore the density will be 435.5 / 154 = 2.827 grams/ cubic inch

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Air enters a diffuser witha velocity of 400 m/s, a pressure of 1 bar and temperature of 25 C. It exits with a temperature of 100
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Answer:

Exit velocity of air is 96.43 m/s.

Explanation:

Given that

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For diffuser

h_1+\dfrac{V_1^2}{2000}=h_2+\dfrac{V_2^2}{2000}

We know that

h=C_pT

h_1+\dfrac{V_1^2}{2}=h_2+\dfrac{V_2^2}{2000}

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V_2=96.43\ m/s

So the exit velocity of air is 96.43 m/s.

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3 years ago
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