A person walks from the store their car in the parking lot. The outside temp is 35° The person's skin is 91.49 F. Determine the net energy transfer from the person's body during the mins spent walking to the car. Note: skin emissivity is 0.90 and the surface area of the person is 1.3 square meters 18 points!!

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

On a average work day more than work place firs are reorted