Answer:
A radio telescope helped the astronomers discover the CMB.
Explanation:
- Penzias and Wilson while experimenting with a radio telescope in 1964, accidentally discovered the radiation that exists universally also known as the CMB.
- This was used to support the "Big Bang Theory" and not the "Steady State Theory"
- CMB is the faint cosmic radiation that fills up the universe. It provides important data for understanding early universe.
- This data tells us about the composition of the universe and its age which raises new questions about the universe.
Every outlet, receptacle, lamp, appliance, and other directly wired device in the house must all be connected in parallel.
-- This ensures that each receptacle and light socket is supplied the same voltage.
-- It also ensures that turning off or unplugging one device won't cut off the power to a bunch of others in the house.
Thermal- transfer of heat thru space
Radiation- the average amount of energy of motion in the molecules of a substance
Thermometer- a thin glass tube with a bulb on one end that contains a liquid, usually mercury or colored alcohol
Brainly?
Answer:
20 J
Explanation:
as volume remains constant hence work done is zero
internal energy = heat given to system -work done by system
= 20 J -0
= 20 J