Force, the unit is Newton, newton is the force to accelerate a mass. so it should be kg m/s^2
joule (J) is equal to Nm not Ns
the unit of work is J and it is correct.
the unit of power is J/s which is equal to W
the unit of of energy is the same with work, which is J which equivalent to kgm2/s2
Answer:
Tha valency of Oxygen is 2 because it need two atom of hydrogen to form water.
the earth exerts a gravitational force
The Answer is Option C
I think...
Sorry If i am wrong...
