# In the morning, a concrete statue of specific heat = 600 j/(kg k) has a temperature of 15°c. during the day, it sits in the sun and warms up to 40°c, gaining 90,000 j of thermal energy. what is its mass?

6.0 kilos

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To find the mass of the concrete statue, we can use the formula:

Q = mcΔT

Where: Q = thermal energy gained (90,000 J) m = mass (unknown) c = specific heat capacity of concrete (600 J/(kg·K)) ΔT = change in temperature (40°C - 15°C = 25°C)

Rearranging the formula to solve for mass (m), we get:

m = Q / (cΔT)

Substituting the given values:

m = 90,000 J / (600 J/(kg·K) * 25°C)

m = 6 kg

So, the mass of the concrete statue is 6 kg.

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