Phil wants to make a dark themed superhero movie. What could be his target demographic? A.
male, aged 8-15
B.
female, aged 15-23
C.
female, aged 35-43
D.
male, aged 18-25
E.
male, aged 45-53

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?

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false

The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody