Answer:
<em>1.01 W/m</em>
Explanation:
diameter of the pipe d = 30 mm = 0.03 m
radius of the pipe r = d/2 = 0.015 m
external air temperature Ta = 20 °C
temperature of pipe wall Tw = 150 °C
convection coefficient at outer tube surface h = 11 W/m^2-K
From the above,<em> we assumed that the pipe wall and the oil are in thermal equilibrium</em>.
area of the pipe per unit length A = 
= 
m^2/m
convectional heat loss Q = Ah(Tw - Ta)
Q = 7.069 x 10^-4 x 11 x (150 - 20)
Q = 7.069 x 10^-4 x 11 x 130 = <em>1.01 W/m</em>
Answer:
A study looking at how alcohol consumption impacts the brain. A study to discover the components making up human DNA. A study accessing whether stress levels
Explanation:
For example, a scientist that tries to figure out how the body makes cholesterol, or what causes a particular disease, is performing basic scienc
Answer:
Friction is a kind of force between two object when we rub or slide its surfaces together
for ex: when you rub the matchbox you get fire which is the result of friction
Explanation:
thats all i know
Answer:
similar type of electric charges attract one another
I think this is a coorect staement
It is Yellow, Cyan, Magenta . The answer is D.
