7. A 5.50-kg black cat and her four black kittens, each with mass 0.800 kg, sleep snuggled together ona mat on a cool night, with their bodies forming a hemisphere. Assume the hemisphere has asurface temperature of 31.0°C, an emissivity of 0.970, and a uniform density of 990 kg/m³. Find(a) the radius of the hemisphere,(b) the area of its curved surface,(c) the radiated power emitted by the cats at their curved surface, and(d) the intensity of radiation at this surface. You may think of the emitted electromagnetic wave ashaving a single predominant frequency. Find(e) the amplitude of the electric field in the electromagnetic wave just outside the surface of thecozy pile and(f) the amplitude of the magnetic field.(g) The next night, the kittens all sleep alone, curling up into separate hemispheres like theirmother. Find the total radiated power of the family. (For simplicity, ignore the cats' absorption ofradiation from the environment.)

The cat has a mass of 5.5 kg, along with 4 kittens each of mass 0.8 kg The cats and kittens are…

7. A 5.50-kg black cat and her four black kittens, each with mass 0.800 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 31.0°C, an emissivity of 0.970, and a uniform density of 990 kg/m³. Find (a) the radius of the hemisphere, (b) the area of its curved surface, (c) the radiated power emitted by the cats at their curved surface, and

7. A 5.50-kg black cat and her four black kittens, each with mass 0.800 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 31.0°C, an emissivity of 0.970, and a uniform density of 990 kg/m³. Find (a) the radius of the hemisphere, (b) the area of its curved surface, (c) the radiated power emitted by the cats at their curved surface, and