Answer:
36 volts
If the circuit has a current of 3 amps, and a 12 ohm resistor.
12 x 3 = 36volts
1 bar or 100 000 pascales. Or 1020 hPa. It kinda differentiates.
I am assuming you know the relation obtained between slit width, distance of screen from slits, distance of interference pattern obtained on the screen from the center and the wavelength of monochromatic light used in Young's Double Slit experiment.
λ =

λ ~ 1.97 ×10⁻⁷m
Answer:
This is because the air outside is always cooler than the air inside, so after staying outside your body adapts to the cold air, when you come back inside, the cold air is still in you which makes the room seem warmer.