Question:
How many times is the proton heavier than the electron?
Answer:
1840 times
Question:
What industries is mica as a raw material?
Answer:
Electrical
Question:
How long does it take a light from the star(Alpha Centauri) to reach earth?
Answer:
4.3 years
Question:
What is the unit for the pitch?
Answer:
Hertz
Question:
The walls of the hall, built for music concerts should ______.
Answer:
Absorb sound
