Question

A stainless steel ball (ρ = 8055 kg/m3

, C = 480 J/kg.K) of diameter 15 cm is removed from the

oven at a uniform temperature of 350°C. The ball is then exposed to atmospheric air at 30°C

with velocity of 6 m/s. The surface temperature of the ball eventually drops to 250°C. Determine

the average heat transfer coefficient during the cooling process and calculate the time for

cooling process.​

Answer 1

Step-by-step explanation:

Is dude a bad word?

Depends on the context. The word "dude" itself is informal, not strictly offensive or disrespectful. It can, however, be used in an offensive way and taken as such especially by older people who grew up with a different idea of it (as Quora User mentioned).

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