Question

1 – Product of mass and acceleration due to gravity
2 – Sum of protons and neutrons in the nucleus of an atom
3 – Calculate the work done to take an object of mass 20 kg to a height of 10 m.
(g = 9.8 m/s2)
4 – Positive radical​

Answer 1

Answer:

1 that is weight mg

2.protons and neutrons in the nucleus are called nucleus that is equal to mass no.

3 work done = mgh

= 20× 10×10 = 2000J