subject
Physics, 07.03.2020 00:12 jack253680

A thick steel slab ( = 7800 kg/m3, c = 480 J/kg K, k = 50 W/m K) is initially at 300°C and is cooled by water jets impinging on one of its surfaces. The temperature of the water is 25°C, and the jets maintain an extremely large, approximately uniform convection coefficient at the surface. Assuming that the surface is maintained at the temperature of the water throughout the cooling, how long will it take for the temperature to reach 50°C at a distance of 25 mm from the surface?

ansver
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 23:40, nicog94
Avalue that describes how heavy an object is and is related to the force of gravity is
Answers: 1
image
Physics, 22.06.2019 07:00, luisr0754
Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount
Answers: 1
image
Physics, 22.06.2019 07:30, elijahjacksonrp6z2o7
Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?
Answers: 1
image
Physics, 22.06.2019 14:30, livagrace
Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
Answers: 1
You know the right answer?
A thick steel slab ( = 7800 kg/m3, c = 480 J/kg K, k = 50 W/m K) is initially at 300°C and is cooled...

Questions in other subjects: