2. As the sun rises, the temperature at the surface of a lake is quickly raised and maintained at 290K. The lake was originally 280K throughout. The thermal diffusivity of water is 0.143 10-6 m2/s. H...

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2. As the sun rises, the temperature at the surface of a lake is quickly raised and maintained at 290K. The lake was original

Answer 1

Answer #1

Soluton Gpye that The Sudate 04 alake %; Quocbly ra,sed and 6 26cm L2 80cad 2. 2000 362 6Kō3

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As the sun rises, the temperature at the surface of a lake is quickly raised and...

As the sun rises, the temperature at the surface of a lake is quickly raised and maintained at 290K. The lake was originally 280K throughout. The thermal diffusivity of water is 0.143 × 10−6 m2/s. How long will it take for water 5 cm below the surface to rise to 285K.
Still water of some depth initially at 37°C has its surface raised to 100°C (6 and...

Still water of some depth initially at 37°C has its surface raised to 100°C (6 and maintained at this level. Determine the depth at which the temperature will reach 48°C after 10 seconds. Also find the heat flow during this time into the water. If the surface temperature only was raised to 50°C determine .these quantities.(Thermal diffusivity) a = 1.595 x 10^-7 m2/s; k = 0.656 W/mK