Thermal expansion Definition and 263 Threads

  1. R

    How do I determine the number of fringes in Thermal Expansion Lab?

    Thermal Expansion Lab I'm trying to do the Prelab question 2 in the above lab. These are the steps I'm taking, please correct me if I am wrong, and please assist me where I need help, thanks! 1) The expansion coefficient of copper is 16.7*10^-6 K^-1, and the length of the bar of copper...
  2. R

    Thermal expansion of a metal plate

    Hi guys ,I am stuck up with the following problem,can you please give me a solution. When a metal plate with a circular hole at its centre, is heated, definitely along with the areal expansion of the plate the diametre of the circular hole also increases .But can you give...
  3. R

    Thermal expansion of steel pipe

    The equatorial radius of the Earth is about 6370km. Consider a 40,000 km long steel pipe that forms a giant ring that fits snugly around the equator of the earth. Suppose the temp. of the pipe is increases 1 degree C. The pipe gets longer. it is also no longer snug. How high does the pipe stand...
  4. K

    Thermodynamics - Thermal Expansion

    The following questions are extracted from "Physics" Halliday Resnick & Krane Chapter 21 problem 7. (a) Show that if the lengths of two rods of different solids are inversely proportional to their respective coefficients of linear expansion at the same initial temperature, the difference in...
  5. B

    How Does Thermal Expansion Affect the Tension in a Stainless Steel Band?

    The band below is stainless steel (coefficient of linear expansion=17.3X10^-6 degrees C, youngs modulus=18X10^10 N/m^2). It is essentially circular with an intial mean radius of 5.0mm, a height of 4.0mm and a thickness of 0.50mm. If the band just fits snugly over the tooth when heated to a...
  6. C

    Thermal expansion of lead sphere

    Hi guys and girls, I've been going thorugh some problems in cutnell & johnson on heat and temperature and I have become stuck on this question. Can anybody help with this? Its from Cutnell and Johnson 5th p375 Q18*. A lead sphere has a diatmeter that is 0.05% larger than the inner diameter...
  7. A

    Another problem on Thermal Expansion

    A beaker made of ordinary glass contains a lead sphere of diameter 4 cm firmly attached to its bottom. At a uniform temperature of -10 degrees Celsius, the beaker is filled to the brim with 118 cm^3 of mercury, which completely covers the sphere. How much mercury overflows from the beaker if the...
  8. A

    How Cold to Separate a Heated Brass Ring from an Aluminum Rod?

    A brass ring of diameter 10.00 cm at 20 degrees Celsius is heated and slipped over an aluminum rod of diameter 10.01 cm at 20 degrees Celsius. Assuming the average coefficients of linear expansion are constant, a) to what temperature must this combination be cooled to separate them? b) What if...
  9. J

    What Is the Net Force on Each Side of a Heated Sealed Box?

    thermal expansion? I need help asap! the question goes like this... A cubic metal ox with sides of length 20cm contains air at pressure of 1 atm and a temperature of 300K. the box is sealed so that the volume is constant and heated to 400K. what is the net force on each side of the box...
  10. J

    Thermal expansion and a pendulum clock

    I need a little help. The problem is as follows: A pendulum clock with a pendulum made of brass is designed to keep accurate time at 18 °C. If the clock operates at 0.0°C, what is the magnitude of its error, in seconds per hour (use a minus sign to indicate slowing down)? The linear...
  11. T

    Thermal expansion of diameter of pipe filled with water

    I would like to calculate the new diameter and thickness of a steel pipe filled with water. At 20oC the pipe ID is 0.1016m and thickness is 0.0127m. Coef vol th exp water 21e-5/oC coef lin th exp steel 1.2e-6 The pipe can be assumed 1m in length. I calculated that the water would expand...
  12. A

    Thermal Expansion of copper sphere Problem

    This one is giving me trouble because I don't know the final radius and I don't know how to find it. 1. A copper sphere of radius 2.000 cm is placed over a hole of radius 1.990 cm in an aluminum plate at 20 deg. C. At what common temperature will the sphere pass through the hole? Ans. 747...
  13. S

    Thermal Expansion of a hollow aluminum cylinder

    I need help with coming up with a formula for this question: A hollow aluminum cylinder 18.0 cm deep has an internal capacity of 2.000 L at 18 C. It is completely filled with turpentine and then warmed to 84 C. How much turpentine overflows? If the cylinder is then cooled back to 18 C, how...
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