3 years ago

Thanks for the help!

Engineering

1 answer:

Dafna11 [192]3 years ago

6 0

Answer:

the 1st one i think

Explanation:

You might be interested in

Weight limit for a pallet

hammer [34]

Answer:

standard pallet can withstand 4,600lbs

Explanation:

6 0

3 years ago

Read 2 more answers

Question 9 of 25

mafiozo [28]

Answer:

Explanation:

took test failed question D is the right answer

3 0

3 years ago

There have been many attempts to manufacture and market plastic bicycles. All have been too flexible and soft. Which design-limi

Sladkaya [172]

Answer:

The design-limiting property that insufficiently large is the elastic modulus (Young modulus)

Explanation:

Plastic usually have a relatively low elastic modulus, this couses the material to deform too much under stress. In the case of a bicycle, a little weight you put on it or little bumps will cause the bicycle to deform too much.

5 0

3 years ago

The entire system of components that produces power and transmits it to the road is called the vehicle's _____.

IrinaK [193]

Answer:

Powertrain

Explanation:

6 0

3 years ago

A furnace wall is to be built of 20-cm firebrick and building (structural) brick of same thickness. The thermal conductivities o

Norma-Jean [14]

Answer:

q=2313.04 $W/m^2$

T=690.86°C

Explanation:

Given that

Thickness t= 20 cm

Thermal conductivity of firebrick= 1.6 W/m.K

Thermal conductivity of structural brick= 0.7 W/m.K

Inner temperature of firebrick=980°C

Outer temperature of structural brick =30°C

We know that thermal resistance

$R=\dfrac{t}{KA}$

These are connect in series

$R=\left(\dfrac{t}{KA}\right)_{fire}+\left(\dfrac{t}{KA}\right)_{struc}$

$R=\dfrac{0.2}{1.6A}+\dfrac{0.2}{0.7A}\ K/W$

$R=\dfrac{23}{56A}\ K/W$

Heat transfer

$Q=\dfrac{\Delta T}{R}$

$Q=56A\times \dfrac{980-30}{23}\ W$

So heat flux

q=2313.04 $W/m^2$

Lets temperature between interface is T

Now by equating heat in both bricks

$\dfrac{980-T}{\dfrac{0.2}{1.6A}}=\dfrac{T-30}{\dfrac{0.2}{0.7A}}$

So T=690.86°C

6 0

3 years ago