Seals may cool themselves by using thermal windows, patches on their bodies with much higher than average surface temperature. Suppose a seal has a 0.030 m 2 thermal window at a temperature of 30°C. If the seal's surroundings are a frosty –10°C, what is the net rate of energy loss by radiation ? Assume an emissivity equal to that of a human.
Seals may cool themselves by using thermal windows, patches on their bodies with much higher than average surface temperature. Suppose a seal has a 0.030 m 2 thermal window at a temperature of 30°C. If the seal's surroundings are a frosty –10°C, what is the net rate of energy loss by radiation ? Assume an emissivity equal to that of a human.
Seals may cool themselves by using thermal windows, patches on their bodies with much higher than average surface temperature. Suppose a seal has a 0.030 m2 thermal window at a temperature of 30°C. If the seal's surroundings are a frosty –10°C, what is the net rate of energy loss by radiation? Assume an emissivity equal to that of a human.
suggest a reason ultrasound cleaning is better than cleaning by hand?
Checkpoint 4
The figure shows four orientations of an electric di-
pole in an external electric field. Rank the orienta-
tions according to (a) the magnitude of the torque
on the dipole and (b) the potential energy of the di-
pole, greatest first.
(1)
(2)
E
(4)
What is integrated science.
What is fractional distillation
What is simple distillation
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Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
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