A home uses a concrete floor to store passive solar energy. If the floor heats to $40 ^ { \circ } \mathrm { C }$ during the day and cools to $20 ^ { \circ } \mathrm { C }$ at night, calculate the thickness of concrete needed to store the amount of energy from Example $8.7$ if the floor's area is $150 \mathrm {~m} ^ { 2 }$.

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The Answer of A home uses a concrete floor to store passive solar energy. If the floor heats to $40 ^ { \circ } \mathrm { C }$ during the day and cools to $20 ^ { \circ } \mathrm { C }$ at night, calculate the thickness of concrete needed to store the amount of energy from Example $8.7$ if the floor's area is $150 \mathrm {~m} ^ { 2 }$.

A Home Uses a Concrete Floor to Store Passive Solar 40∘C40 ^ { \circ } \mathrm { C }40∘C

A Home Uses a Concrete Floor to Store Passive Solar $40 ^ { \circ } \mathrm { C }$