Homework Answers
expansion due to temperature change = alpha*change in temp* original length
alpha = coefficient of thermal expansion = 7.2*10-6 per degree F
expansion due to temperature change = 7.2*10-6 *(120-30)*40 = 0.02592 feet
so expansion allowed =0.02592 feet
Add Answer to:
QUESTION 4 What should be the separation between successive 40 feet steel rails (laid end to...
The 40-ft long A-36 steel rails on a train track are laid with a small gap...
The 40-ft long A-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. Determine the total required gap, 2*6, so that the rails just touch one another when the temperature is increased from T1 -20°F to T2 90 °F. If the rails were installed at -20 °F with this gap, what would be the axial force in the rails if the temperature were to rise to T3 = 110 °F....
Steel train rails are laid in 14.0-m-long segments placed end to end. The rails are laid...
Steel train rails are laid in 14.0-m-long segments placed end to end. The rails are laid on a winter day when their temperature is -5.0 ∘C. How much space must be left between adjacent rails if they are just to touch on a summer day when their temperature is 33.0 ∘C? If the rails are originally laid in contact, what is the stress in them on a summer day when their temperature is 33.0 ∘C? Please answer both questions
9 Space? vetween the **9. Steel rails 20 m lo between the rails to allow laid...
9
Space? vetween the **9. Steel rails 20 m lo between the rails to allow laid on a cold winter day at -10° C. How much space must be left to allow for expansion at a summer temperature of 40°C the aluminum cap is too hard to unscrew on a new illeri *+10. If the aluminum a
3. Steel railroad rails 18,2880 m long are laid on a winter day when the temperature...
3. Steel railroad rails 18,2880 m long are laid on a winter day when the temperature is -6,00 °C. How much space must be left between rails if they are just to touch on a summer day when the temperature is 43 °C? (4)
Full solution thank The 12-m-long A-36 steel rails on a train track are laid with a...
Full solution thank
The 12-m-long A-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. The CROSS-sectional area of each railis 3100 mm . (Figure 1) - Part A Determine the required gap & so that the rails just touch one another when the temperature is increased from Ti -30°C to 30°C Express your answer to three significant figures and include the appropriate units. :MAO ? Value Units Fiqure 1...
A railroad track la made of individual rails of steel each 29 feet in length. By...
A railroad track la made of individual rails of steel each 29 feet in length. By what length would one rail change from a cold winter day when the temperature is -10 degree Cto a hot summer day at 30 degree C? (1 m. 3.281 ).(1km = 1000m) (5280 ft = 1 mile) (1 mile = 1.609 km) TABLE 14.1. Coefficients of linear expansion for selected materials Material a (K 'or C-1) Quartz (fused) 0.04 x 10 Invar (nickel- iron...
24. from A water main is to be laid The water level in the tower is 150 ft above the ground. The ...
24. from A water main is to be laid The water level in the tower is 150 ft above the ground. The main must supply a maximum of 1000 gpm with a minimum of 5psig at the discharge end, at a temperature of 65°F. What size commercial steel sch 40 pipe should be used for the water main? If plastic pipe (which is hydraulically smooth) were used instead, would this alter the result? If so, what diameter of plastic pipe...
24. from A water main is to be laid The water level in the tower is 150 ft above the ground. The ...
24. from A water main is to be laid The water level in the tower is 150 ft above the ground. The main must supply a maximum of 1000 gpm with a minimum of 5psig at the discharge end, at a temperature of 65°F. What size commercial steel sch 40 pipe should be used for the water main? If plastic pipe (which is hydraulically smooth) were used instead, would this alter the result? If so, what diameter of plastic pipe...
Question 2 Figure Q2 shows a strain gauge bonded to a piece of steel under a...
Question 2 Figure Q2 shows a strain gauge bonded to a piece of steel under a tensile force. The direction of strain measurement is at 90° to the direction of the force. The gauge has been selected to be self-compensating for temperature but the leads to and from the gauge are subject to temperature variations of 130 °C. The strain gauge and the metal have the following properties: Steel specification Gauge specification Gauge factor-2.00 Young's modulus -210 GN/m2 Poisson's ratio...
10 pts Question 17 Two bars, A and Beach of length 2.3m and cross-sectional area 1.4...
10 pts Question 17 Two bars, A and Beach of length 2.3m and cross-sectional area 1.4 m., are placed end to end as shown in the figure. The thermal conductivities of the bars are 450 W/mK) and 905 l/s.m.K), respectively. The left end of bar Ais maintained at 373 Kwhile the right end of Bis maintained at 273 K. What is the temperature at the interface between A and B? Please round your answer to the nearest whole number B...
The 40-ft long A-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. Determine the total required gap, 2*6, so that the rails just touch one another when the temperature is increased from T1 -20°F to T2 90 °F. If the rails were installed at -20 °F with this gap, what would be the axial force in the rails if the temperature were to rise to T3 = 110 °F....
9
Space? vetween the **9. Steel rails 20 m lo between the rails to allow laid on a cold winter day at -10° C. How much space must be left to allow for expansion at a summer temperature of 40°C the aluminum cap is too hard to unscrew on a new illeri *+10. If the aluminum a
3. Steel railroad rails 18,2880 m long are laid on a winter day when the temperature is -6,00 °C. How much space must be left between rails if they are just to touch on a summer day when the temperature is 43 °C? (4)
Full solution thank
The 12-m-long A-36 steel rails on a train track are laid with a small gap between them to allow for thermal expansion. The CROSS-sectional area of each railis 3100 mm . (Figure 1) - Part A Determine the required gap & so that the rails just touch one another when the temperature is increased from Ti -30°C to 30°C Express your answer to three significant figures and include the appropriate units. :MAO ? Value Units Fiqure 1...
A railroad track la made of individual rails of steel each 29 feet in length. By what length would one rail change from a cold winter day when the temperature is -10 degree Cto a hot summer day at 30 degree C? (1 m. 3.281 ).(1km = 1000m) (5280 ft = 1 mile) (1 mile = 1.609 km) TABLE 14.1. Coefficients of linear expansion for selected materials Material a (K 'or C-1) Quartz (fused) 0.04 x 10 Invar (nickel- iron...
24. from A water main is to be laid The water level in the tower is 150 ft above the ground. The main must supply a maximum of 1000 gpm with a minimum of 5psig at the discharge end, at a temperature of 65°F. What size commercial steel sch 40 pipe should be used for the water main? If plastic pipe (which is hydraulically smooth) were used instead, would this alter the result? If so, what diameter of plastic pipe...
24. from A water main is to be laid The water level in the tower is 150 ft above the ground. The main must supply a maximum of 1000 gpm with a minimum of 5psig at the discharge end, at a temperature of 65°F. What size commercial steel sch 40 pipe should be used for the water main? If plastic pipe (which is hydraulically smooth) were used instead, would this alter the result? If so, what diameter of plastic pipe...
Question 2 Figure Q2 shows a strain gauge bonded to a piece of steel under a tensile force. The direction of strain measurement is at 90° to the direction of the force. The gauge has been selected to be self-compensating for temperature but the leads to and from the gauge are subject to temperature variations of 130 °C. The strain gauge and the metal have the following properties: Steel specification Gauge specification Gauge factor-2.00 Young's modulus -210 GN/m2 Poisson's ratio...
10 pts Question 17 Two bars, A and Beach of length 2.3m and cross-sectional area 1.4 m., are placed end to end as shown in the figure. The thermal conductivities of the bars are 450 W/mK) and 905 l/s.m.K), respectively. The left end of bar Ais maintained at 373 Kwhile the right end of Bis maintained at 273 K. What is the temperature at the interface between A and B? Please round your answer to the nearest whole number B...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago