Answer:
The value is 
Explanation:
From the question we are told that
The rate at which the plate rotates is 
Generally the revolution per second is mathematically represented as

=> 
ans D. Substance B has a greater latent heat of vaporization than substance A.
I think it is d I hope this help you if not let me know if it is not right
Mass of object/source
Gravity
Fg=mg
Answer:
okay with you if you want to