Physics, 29.07.2019 18:20 Playboycxm
A5.05-kg black cat and her four black kittens, each with mass 0.768 kg, sleep snuggled together on a mat on a cool night, with their bodies forming a hemisphere. assume the hemisphere has a surface temperature of 31.8°c, an emissivity of 0.970, and a uniform density of 1055 kg/m3. (a) find the radius of the hemisphere. m (b) find the area of its curved surface. m2 (c) find the radiated power emitted by the cats at their curved surface. w (d) find the intensity of radiation at this surface. you may think of the emitted electromagnetic wave as having a single predominant frequency. w/m2 (e) find the amplitude of the electric field in the electromagnetic wave just outside the surface of the cozy pile. n/c (f) find the amplitude of the magnetic field. µt (g) the next night, the kittens all sleep alone, curling up into separate hemispheres like their mother. find the total radiated power of the family. (for simplicity, ignore the cats' absorption of radiation from the environment.) w
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Physics, 21.06.2019 12:30
11 words used to describe an object are called itsor characteristics.total12 is the amount of matter in an object.helt udedelerde elettroduodet littletadli dituntut uploaded13 the metric unit used to measure weight is them.14 if a toy has a mass of 1 kg, it has an earth weight 15 the density of liquid water isti
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Physics, 21.06.2019 20:20
Two friends are having a conversation. anna says a satellite in orbit is in freefall because the satellite keeps falling toward earth. tom says a satellite in orbit is not in freefall because the acceleration due to gravity is not 9.80 m/2 . who do you agree with and why?
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Physics, 21.06.2019 21:20
Abearing is designed to a reduce friction b. support a load c.guide moving parts such as wheels, shafts and pivots d. all of the above
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Physics, 22.06.2019 06:30
Which one of the following research methods can show cause and effect
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A5.05-kg black cat and her four black kittens, each with mass 0.768 kg, sleep snuggled together on a...
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