A solid material has Thermal conductivity K in kilowatts per meterkelvin and temperature given at each point by wtfx, y1z] = 25 4&2 + y2 + 22] \"C. Use The fact that heat flov.r is given by the vector eld F = K"i7"w and the rate of heat ow across a surface 3 within the solid is given by K if; 'w :13. Find the rate of heat ov.r out of a sphere of radius 1 {centered at The origin} inside a large cube of copper [K = 401) kafm - KT}. {Use symbolic notation and fractions where needed.) Incorrect