Answer:
356K
Explanation:
use this formula for brayton cycle
∩=1-(Tin/Tout)
where
∩=efficiency
Tin= inlet temperature
Tout=
outlet temperature
solving
Tout=Tin/(1-∩)
Tout=267K/(1-0.25)
Tout=356K
B.because electromagnetic waves transmit energy without compressing the particles of the medium
Particles that are small compared with the light wavelength scatter blue light more strongly than red light. Because of this, the tiny gas molecules that make up our Earth's atmosphere (mostly oxygen and nitrogen) scatter the blue portion of sunlight in all directions, creating an effect that we see as a blue sky.
It’s says that the temperature in the room is 23C so the air temperature in the air would be 23C
-Positively charged nucleus
-Empty spaced
-Dense core