1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Rashid [163]
3 years ago
13

The pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25°C, the pres

sure gage reads 210 kPa. If the volume of the tire is 0.025 m3, determine the pressure rise in the tire when the air temperature in the tire rises to 44°C. Also, determine the amount of air that must be bled off to restore pressure to its original value at this temperature. Assume the atmospheric pressure to be 100 kPa.
Engineering
1 answer:
kirza4 [7]3 years ago
4 0

Answer:

ΔP=19.76 KPa

\Delta m=10^{-3}\ gm

Explanation:

Given that

T_1= 25C,  P_1= 210 \KPa \gauge

atmospheric pressure = 100 kPa.

So absolute pressure = Atmospheric pressure + gauge pressure

P_1=210+100\ KPa (absolute)

P_1=310\ KPa (absolute)

Here volume of air is constant .We know that for constant volume pressure

\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}

here

T_2= 44C

T_1=273+25=298K

T_2=273+44=317K

\dfrac{P_1}{T_1}=\dfrac{P_2}{T_2}

\dfrac{310}{298}=\dfrac{P_2}{317}

P_2=329.76\ KPa (absolute)

So rise in pressure

\Delta P=P_1-P_2

ΔP=329.76-310 KPa

ΔP=19.76 KPa

m_1=\dfrac{P_1V}{RT_1}

m_1=\dfrac{310\times 0.025}{0.287\times 298}

m_1=0.090615\ kg

m_2=\dfrac{P_2V}{RT_2}

m_2=\dfrac{329.76\times 0.025}{0.287\times 317}

m_2=0.090614\ kg

Δm=0.090615 - 0.090614 kg

\Delta m=10^{-3}\ gm

You might be interested in
Find the velocity and acceleration of box B when point A moves vertically 1 m/s and it is 5 m
Goshia [24]

Answer:

hshbdhehdjsbdjdissasoe

7 0
4 years ago
At audio frequencies (below 20kHz), electromagnetic waves have very ____ wavelengths. The wavelength is typically much larger th
netineya [11]

Answer:

broad, transmission or power lines, electrical circuit theory

Explanation:

Electromagnetic waves have quite broad wavelengths for audio frequencies. Normally, the wavelength is larger than any of wires used in circuit. Long transmission or power line might be an exception. If the wavelength is much smaller than length of a wire, the basic principles of electronic circuits apply and the principle of electrical circuits is not needed

For wavelength much smaller than length of wire given, the given elements behave as distributed element, so for this condition Maxwell equation is apply

4 0
3 years ago
A square steel bar has a length of 8.4 ft and a 2.1 in by 2.1 in cross section and is subjected to axial tension. The final leng
nikitadnepr [17]

Answer:

Poissons ratio = -0.3367

Explanation:

Poissons ratio = Lateral Strain / Longitudinal Strain

In this case, the longitudinal strain will be:

Strain (longitudinal) = Change in length / total length

Strain (longitudinal) = (8.40392 - 8.4) / 8.4

Strain (longitudinal) = 4.666 * 10^(-4)

While the lateral strain will be:

Strain (Lateral) = Change in length / total length

Strain (Lateral) = (2.09967 - 2.1) / 2.1

Strain (Lateral) = -1.571 * 10^(-4)

Solving the poisson equation at the top we get:

Poissons ratio = -1.571 / 4.666                                     <u>( 10^(-4) cancels out )</u>

Poissons ratio = -0.3367

6 0
3 years ago
Incremental software development could be very effectively used for customers who do not have a clear idea about the systems nee
avanturin [10]

<u>Software Development and Client Needs</u>

In Incremental method of software development customers who do not have a basic idea of the development process are being carried along on like other methods that will relegate them to the background until a product is ready.

With this model and structure in place, when softwares/ products are built from several stages e.g prototype, testing, and when new features are added customers are always carried along with their valuable feedback and suggested greatly considered to achieve the customers satisfactions

This model will work well for the customers/clients who does not have a clear idea on the systems needed for their operations.

In summary the incremental model combines features from the waterfall and prototyping model.

For more information on soft ware development process kindly visit

brainly.com/question/20369682

5 0
2 years ago
"Water is flowing in a metal pipe. The pipe OD (outside diameter) is 61 cm. The pipe length is 120 m. The pipe wall thickness is
Katarina [22]

Answer:

Total wight =640.7927 KN

Explanation:

Given that

do= 61 cm

L =120

t= 0.9 cm

That is why inner diameter of the pipe

di= 61 - 2 x 0.9 cm

di=59.2 cm

Water density ,ρ = 1 kg/L = 1000 kg/m³

Weight of the pipe ,wt = 2500 N/m

wt = 2500 x 120 N = 300,000 N

The wight of the water

wt ' = ρ V g

wt'=1000\times \dfrac{\pi}{4}\times (0.61^2-0.0592^2)\times 9.81\times 120 N

wt'=340792.47 N

That is why total wight

Total wight = wt + wt'

Total wight =300,000+ 340792.47 N

Total wight =640,792.47 N

Total wight =640.7927 KN

7 0
4 years ago
Other questions:
  • At the beginning of the compression process of an air-standard Diesel cycle, p1 = 95 kPa and T1 = 300 K. The maximum temperature
    6·1 answer
  • Hydrogen is preferred for regeneratively cooled nozzles because it is easy to pump. a)-True b)-False
    6·1 answer
  • What is the weight of a glider with a mass of 4.9 grams?
    12·1 answer
  • A guy named Kirby Had touched only a gear on the projector. Yet there was a out of the blue rip. Kirby did not mind at all and s
    6·1 answer
  • A 0.01 significance level is used for a hypothesis test of the claim that when parents use a particular method of gender? select
    13·1 answer
  • 1. When measuring a cylinder for wear, the most wear will be found at the
    6·1 answer
  • Does any1 know TERMS OF MEASUREMENT
    12·2 answers
  • Which is an alloy made up of iron and carbon and has high compressive and tensile strength?
    11·1 answer
  • What are Teets<br><br> I am so confused right kn
    9·1 answer
  • Pipelines are a useful means of transporting oil because they: Multiple select question. are fast never fail to deliver are chea
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!