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
Explanation:
power=f×v. recall= distances/ time
= f× d/t
= 30 × 2/5
=12watt
D. because the statue has a new chemical called patina. It is no longer copper.
Answer:reflection by dust particles in air
