2 years ago

What is the reason for the development of new construction of materials for human use? (Select all that apply.)

Engineering

1 answer:

salantis [7]2 years ago

7 0

Answer:

All 4 could be justified.

Explanation:

They all represent ultimate improvement.

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Monica [59]

Answer:

Explanation:

This is because many things, such as pcs, over heat

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3 years ago

The forming section of a plastics plant puts out a continuous sheet of plastic that is 1.2 m wide and 2 mm thick at a rate of 15

KATRIN_1 [288]

Answer:

attached below

Explanation:

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3 years ago

Which of the following requirement statements is an example of a breakdown of the accuracy standard?

const2013 [10]

Answer:

<u>The automobile rental prices shall show all taxes (including a 6% state tax).</u>

Explanation:

Im pretty sure

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2 years ago

A 50-lbm iron casting, initially at 700o F, is quenched in a tank filled with 2121 lbm of oil, initially at 80o F. The iron cast

insens350 [35]

Answer:

a) The final equilibrium temperature is 83.23°F

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See attached workings

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3 years ago

Ignoring any losses, estimate how much energy (in units of Btu) is required to raise the temperature of water in a 90-gallon hot

Rudik [331]

Answer:

Q=36444.11 Btu

Explanation:

Given that

Initial temperature = 60° F

Final temperature = 110° F

Specific heat of water = 0.999 Btu/lbm.R

Volume of water = 90 gallon

Mass = Volume x density

$1\ gallon = 0.13ft^3$

Mass ,m= 90 x 0.13 x 62.36 lbm

m=729.62 lbm

We know that sensible heat given as

Q= m Cp ΔT

Now by putting the values

Q= 729.62 x 0.999 x (110-60) Btu

Q=36444.11 Btu

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2 years ago