Answer:
b
Explanation:
this is because inoder. for combustion or burning to take place oxygen must be available
All of them are right except for the third one
Answer:
F = 0.5 mN
Explanation:
The full solved solution is in the attach document.
Answer: A material called moderator is used to slow down the neutrons released during nuclear fission. The source's neutrons have a high speed and energy. The neutrons' speed is slowed by heavy water or graphite moderators.
Explanation: