Physics

A steel measuring tape is calibrated at 20 degrees Celsius. A reading of 32.10m is measured when it is used to find the length of a building. If the temperature is 5degrees Celsius, what is the actual length of the building at that temperature?
The coefficient of linear expansion for steel is 12*10^-6

  1. 👍 0
  2. 👎 0
  3. 👁 250
asked by Hannah
  1. Does the building expand also? What is its coefficent of linear expansion?

  2. It just says to take into consideration the measuring tape and not the building.

    1. 👍 0
    2. 👎 0
    posted by Hannah
  3. You can get the length of the tape at 5C by

    deltaL=32.10*12E-6*(15)then subtracting deltaL from that L.

  4. Opps, add delta L to L. The tape shrinks, so the measurement of the building is longer.

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    An aluminum measuring tape is correctly calibrated in metric units at exactly 0 degree Celsius. At is used to measure the distance between two lines on a floor, and the reading is 25.000 meters at a temperature of 30.000 degree

    asked by Shellie on January 5, 2015
  2. Math HELP PLEASE

    How many inches a wall in an everyday house might be? Sorry this is for a math portfolio, this isn't the question, but I just need the inches of a wall. I did use measuring tape. I got 22, even though measuring tape, it measured

    asked by Anonymous on November 2, 2015
  3. physics

    A construction worker uses a steep tape to measure the length of an aluminum support column. If the measured length is 18.700 m when the temperature is 21.2 degrees celcius, what is the measured length when the temperature rises

    asked by Mischa on March 13, 2008
  4. Chemistry

    Why did we have to use the same thermometer for finding, the freezing point of both, solvent and solution? If your thermometer was not calibrated (reading 0.05 degrees Celsius below the correct temperature), how would this effect

    asked by G on March 14, 2011
  5. engineering science n3...please help and explain

    Heat A.5kg of steel is cooled down in oil and the temperature drops from 900 degrees celsius to 27degrees celsius. The specific heat capacity of steel is 460J/kg degrees Celsius and that of oil 1.5kJ/kg degrees Celsius Calculate

    asked by cathy on February 24, 2015
  6. math

    1- writing to explain- why might you need to measure a perimeter with a measuring tape instead of a ruler? 2- how are a ruler, a yardstick, and a measuring tape the same? how are they different? i don't 1 answer and i try 2 answer

    asked by jack on March 5, 2012
  7. Chemistry

    Is a calibrated thermometer more precise than one that has not been calibrated? What implications does this have for measuring temperature changes as contrasted with measuring individual temperatures?

    asked by Katie on April 3, 2011
  8. Chemistry

    Is a calibrated thermometer more precise than one that has not been calibrated? What implications does this have for measuring temperature changes as contrasted with measuring individual temperatures?

    asked by Katie on April 3, 2011
  9. Physics 20

    1. How much heat energy is required to change 500 grams of water at 100 degrees Celsius to steam at 100 degrees Celsius? 2. How much energy is lost if 7kg of water is cooled from 46 degrees Celsius to 2 degrees Celsius? 3. How

    asked by Tamai on June 8, 2014
  10. Physics

    Please Help! I am having difficulties grasping these concepts. Explain please! 1. How much heat energy is required to change 500 grams of water at 100 degrees Celsius to steam at 100 degrees Celsius? 2. How much energy is lost if

    asked by Tamai on June 8, 2014

More Similar Questions