Steel Building Height Variation in Summer vs Winter: Thermal Physics Analysis

Thread starter retsehc0401
Start date Dec 20, 2011
Tags

Physics Thermal Thermal physics

AI Thread Summary

The discussion focuses on the thermal expansion of steel in relation to temperature variations, specifically comparing a 50m high steel building at 38°C and -5°C. As temperatures rise, steel expands, leading to an increase in height. The coefficient of linear expansion for steel is approximately 12 x 10^-6 per degree Celsius, which can be used to calculate the height difference. The calculated height increase due to thermal expansion is significant, illustrating the importance of considering temperature effects in engineering design. Understanding these thermal physics principles is crucial for ensuring structural integrity throughout seasonal temperature changes.

Dec 20, 2011

retsehc0401

Thermal Physics (Help me!)

Following an engineering design, a building is constructed using a steel framework that is 50m high. How much taller is it on a summer day when the temperature is 38^oC than on a -5^oC winter day?

Physics news on Phys.org

Dec 20, 2011

LawrenceC

You must show an attempt before we can assist.

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .

View full post »

Thread 'I've come across another fluid pressure problem I don't understand'

Neglect gravity other than that of water; neglect friction. F1=ρgsh=1000*10*1*(1+4)=50000 N; F1=ρgsh=1000*10*0.1*4=4000 N; F3=50000-4000=46000 N?

View full post »

Thread 'Struggling to understand the concept of this question (ice cube in water optics question)'

TL;DR Summary: I came across this question from a Sri Lankan A-level textbook. Question - An ice cube with a length of 10 cm is immersed in water at 0 °C. An observer observes the ice cube from the water, and it seems to be 7.75 cm long. If the refractive index of water is 4/3, find the height of the ice cube immersed in the water. I could not understand how the apparent height of the ice cube in the water depends on the height of the ice cube immersed in the water. Does anyone have an...

View full post »