Concept explainers
(a)
The radius of the hemisphere.
(a)
Answer to Problem 49AP
The radius of the hemisphere is
Explanation of Solution
Given info: The weight of the black cat is
The formula to calculate the total mass is,
Here,
Substitute
The formula to calculate the mass of the hemisphere is,
Here,
Substitute
Conclusion:
Therefore, the radius of the hemisphere is
(b)
The area of the curved surface.
(b)
Answer to Problem 49AP
The area of the curved surface is
Explanation of Solution
Given info: The weight of the black cat is
The formula to calculate the area is,
Substitute
Conclusion:
Therefore, the area of the curved surface is
(c)
The power emitted by the cats.
(c)
Answer to Problem 49AP
The power emitted by the cats is
Explanation of Solution
Given info: The weight of the black cat is
The formula to calculate the power emitted is,
Here,
Substitute
Conclusion:
Therefore, the power emitted by the cats is
(d)
The intensity of
(d)
Answer to Problem 49AP
The intensity of radiation at the surface is
Explanation of Solution
Given info: The weight of the black cat is
The formula to calculate the intensity of radiation is,
Substitute
Conclusion:
Therefore, the intensity of radiation at the surface is
(e)
The amplitude of electric field in the
(e)
Answer to Problem 49AP
The amplitude of electric field in the electromagnetic wave is
Explanation of Solution
Given info: The weight of the black cat is
The formula to calculate the amplitude of the electric field is,
Here,
Substitute
Thus, the amplitude of electric field in the electromagnetic wave is
Conclusion:
Therefore, the amplitude of electric field in the electromagnetic wave is
(f)
The amplitude of magnetic field in the electromagnetic wave.
(f)
Answer to Problem 49AP
The amplitude of magnetic field in the electromagnetic wave is
Explanation of Solution
Given info: The weight of the black cat is
The formula to calculate the amplitude of the magnetic field is,
Substitute
Conclusion:
Therefore, the amplitude of magnetic field in the electromagnetic wave is
(g)
The total power radiated by the family of cat.
(g)
Answer to Problem 49AP
The total power radiated by the family of cat is
Explanation of Solution
Given info: The weight of the black cat is
The formula to calculate the mass of the hemisphere is,
Here,
Substitute
The formula to calculate the power radiated by the kittens is,
Here,
Substitute
The formula to calculate the mass of the hemisphere is,
Here,
Substitute
The formula to calculate the power radiated by the cat is,
Here,
Substitute
The formula to calculate the total power radiated by the family of cat is,
Substitute
Conclusion:
Therefore, the total power radiated by the family of cat is
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Chapter 33 Solutions
Physics for Scientists and Engineers with Modern Physics
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