dcSearch My l 0/9.09 points | Prevmous Answers The temperature difference betwee
ID: 1437576 • Letter: D
Question
dcSearch My l 0/9.09 points | Prevmous Answers The temperature difference between the inside and the outside of a home on a cold winter day is 57.0°F (a) Express this difference on the Celsius scale. 13.88 Your response differs from the correct answer by more than 10%. Double check your calculations. (b) Express this difference on the Kelvin scale. 287 03 X Your response differs from the correct answer by more than 100%. K Need Help? ITaik to a Tdor. My Notes 4.649.09 points| Previous Answers A grandfather clock is controlled by a swinging brass penidulum that is 1.2 m long at a temperature of 26°C (a) What is the length of the pendulum rod when the temperature drops to 0.0°C? (Round your answer to four significant figures) 0.593 The response you submitted has the wrong sign.mm (b) If a pendulum's period is given by T-2 v ug, where I is its length, does the change in length of the rod cause the dock to run fast or slow? fast O slow O neitherExplanation / Answer
1.A. In the question temperature difference is given not specific temperature.
Since temperature difference is given = 57 F
And know that
C = (9/5)*F
57 F = 9*57/5 = 31.67 C
B. Temperature difference will be same in celsius and kelvin scale
ANs = 31.67 C
2. T = 2*pi*sqrt(L/g)
L = L0 + dL
L = L0(1 + alpha*dT)
L0 = 1.2 m
dT = 0 - 20 = -20
alpha = 19*10^-6
L = 1.2*(1 - 19*10^-6*20) = 1.199544 m
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