A pendulum clock has a heavy bob supported on a very thin steelrod that is 1.00000 m long at 21.0 ∘C.
a)To 6 significant figures, what is the clock's period? Assumethat g is 9.80 m/s2 exactly.
b)To 6 significant figures, what is the clock's period if thetemperature increases by 13.0 ∘C? Assume that coefficient of linearexpansion of steel is 1.20×10−5 K−1 .
c)The clock keeps perfect time at 21.0 ∘C. At 34.0 ∘C after howmany hours will the clock be off by 1.00 s ?
