A pendulum clock correct at 1 0 ∘ C loses 8.64 s/day at 30°C. To first order find α in units of 1 0 − 6 K − 1 .

8.64 = 2 1 α ( 20 ) ( 86400 ) gives α = 1 0 − 5 K − 1 . Requested value = 10 .

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PhysicsHeat & ThermoThermal ExpansionMedium2 minQB

PhysicsMediuminteger

A pendulum clock correct at $1 0^{\circ} C$ loses 8.64 s/day at 30°C. To first order find $α$ in units of $1 0^{- 6} K^{- 1}$ .

Answer:

Solution:

$8.64 = \frac{1}{2} α (20) (86400)$ gives $α$ $= 1 0^{- 5} K^{- 1}$ . Requested value $= 10$ .

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermal Expansion

⏱ 2mℹ️ Source: QB

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