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3 years ago

You filled a balloon that has a volume of 45 cm3 with helium gas. What is the volume of the helium gas?

Engineering

1 answer:

dangina [55]3 years ago

6 0

Answer:

The volume of the helium gas is 45 cm³.

Explanation:

The volume of the helium gas can be determined from kinetic theory of gases, which states that gas molecules do not have a fixed volume, rather they assume the volume of their container.

Therefore, if the volume of the balloon is 45 cm³, which is also the container of the helium gas, then the volume of the helium gas is 45 cm³.

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Consider a W21x93. Determine the moment capacity of the beam. Assume the compression flange is not laterally braced and that the

OLga [1]

Answer:

The answer is "828.75"

Explanation:

Please find the correct question:

For W21x93 BEAM,

$Z_x = 221.00 in^3 \\\\\to \frac{b_t}{2t_f} =4.53\\\\\to \frac{h}{t_w}=32.3$

For A992 STREL,

$F_y= 50\ ks$

Check for complete section:

$\to \frac{b_t}{2t_f} =4.53 < \frac{65}{\sqrt{f_y = 9.19}}\\\\\to \frac{h}{t_w} =32.3 < \frac{640}{\sqrt{f_y = 90.5}}$

Design the strength of beam = $\phi_b Z_x F_y\\\\$

$=0.9 \times 221 \times 50\\\\=9945 \ in \ \ kips\\\\=\frac{9945}{12}\\\\= 828.75 \ft \ kips \\$

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3 years ago

Removing Shingles from a roof is called a

torisob [31]

D remodeling roofing

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3 years ago

Atmospheric air at a pressure of 1 atm and dry bulb temperature of 28 C has a wet-bulb temperature of 20 C.

IrinaK [193]

Answer:

a) $\phi = 48\%$ , b) $\omega = 0.012\,\frac{kg\,H_{2}O}{kg\,Air}$ , c) $h = 58\,\frac{kJ}{kg\,Air}$ , d) $T = 17^{\textdegree}C$ , e) $P_{v} = 1.831\,kPa$

Explanation:

a) The relative humidity is given by the intersection of the dry bulb and wet bulb temperatures:

$\phi = 48\%$

b) The humidity ratio is:

$\omega = 0.012\,\frac{kg\,H_{2}O}{kg\,Air}$

c) The enthalpy is:

$h = 58\,\frac{kJ}{kg\,Air}$

d) The dew-point temperature is:

$T = 17^{\textdegree}C$

e) The water vapor pressure is the product of the relative humidity and the saturation pressure evaluated at dry bulb temperature:

$P_{v} = \phi \cdot P_{sat}$

$P_{v} = 0.48\cdot (3.816\,kPa)$

$P_{v} = 1.831\,kPa$

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3 years ago

Which statement most thoroughly describes the profession of an engineer?

Soloha48 [4]

Answer:

Engineers work in teams to design and implement various products using specific processes.

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3 years ago

When one vessel is overtaking

elena-s [515]

Answer:

Explanation:

The question is asking when one boat is overtaking another boat, the overtaking boat should steer around the slower boat. The slower boat, the vessel being overtaken, is the stand-on vessel.

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3 years ago