A. is a neutral substance.
Only neutral substances (like pure water) can have a pH of 7.
Answer:
4000 J
Explanation:
W = F = 2000N , s = 20 m
Workdone = F × s = 200 × 20 = 4000J
Answer:
Take notes
Explanation:
Cuz it helps you stay on task
Solid moves slightly in a fixed position
Gravitational field strength is another name of acceleration due to gravity which can be given by dividing the gravitational force on an object by its mass.
The formula can be given as

where E = gravitational field
= force of gravity
m = mass of the object.
hence the correct choice is
1) Fg/m