How much power will it radiate

Assignment Help Physics

Reference no: EM13719167

Problem: A dish of hot food has an emissivity of 0.48 and emits 15 W of thermal radiation.

Part A: If you wrap it in aluminum foil, which has an emissivity of 0.06, how much power will it radiate?

I need help to find how much power it will radiate.

Reference no: EM13719167

Questions Cloud

What total frictional force acts on the car : When an automobile moves with constant velocity, the power developed is used to overcome the frictional forces exerted by the air and the road. what total frictional force acts on the car at 49 mph

Find the speed of the sled after the stuntman is on board : For a movie scene, an 80kg stuntman drops from a tree onto a 46kg sled that is moving on a frozen lake with a velocity of 10m/s toward the shore. find the speed of the sled after the stuntman is on board

Ideal gas model for the air and variable specific heats : Air at 300 kPa, 63oC, and a velocity of 423 m/s enters an insulated duct of varying cross-sectional area. The air exits at 150 kPa, 88oC. At the inlet, the cross-sectional area is 6.57 cm2.

Find the inward force necessary to provide each blades : If we model a blade as a point mass at the midpoint of the blade, what is the inward force necessary to provide each blade's centripetal acceleration

How much power will it radiate : A dish of hot food has an emissivity of 0.48 and emits 15 W of thermal radiation. how much power will it radiate

How much entropy is produced : Air at 17oC and 200kPa is in a rigid, 2m3, insulated tank that has a paddle wheel in it. 733 kJ of work is put into the system by the paddle wheel. How much entropy is produced?

Find the ratio of this force to the skater weight : In short-track speed skating, the track has straight sections and semicircles 16 m in diameter. What is the ratio of this force to the skater's weight

Obtain how much work does the tension force do on the ball : A rope is attached to a ball, and then the ball is swung with constant speed in a horizontal circle of radius 1 m. If the tension in the rope is 100 N, How much work does the tension force do on the ball

Estimate how much work is done by friction : A 10 kg block is dragged by an unknown force for 10 m along the floor. The coefficient of kinetic friction between the block and the floor is 0.2. How much work is done by friction

User Account

All Pages