a. for copper: 2.65; 1.6%; 0.014%; 0.0014%
for invar: 0.00012%; 0.00072%; 0.38%; 0.58%
This is what I have done so far:
Change in L for copper= 17*10^-6*10^3*16=
0.272m=27.2cm
Change in L for invar= 0.9*10^3*16= 0.0144m= 1.44cm
b.For copper: 12 sec; 18sec; 23 sec; 1382 sec.
For invar: 0.1 sec; 0.6 sec; 3 sec; 328 sec
I am having a problem figuring the percentages and time factors. Thanks for your help.
a) Two pendulums consist of a very thin string at the end of which hangs a mass which is much larger than the mass of the rod. In pendulum #1, the rod is made of copper. In pendulum #2, the rod is made of invar. What is the percentage in the period of the pendulums when the temperature increases by 16 degrees C?
For Copper?
For Invar?
b) The period of the pendulums are the time unit in a clock. How many seconds will the clock go slower in one day when the temperature increases by 16 degrees C?
For Copper?
For Invar.
Thanks.
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