When electrons are lost a positive ion is formed. When electrons are gained, a negative ion is formed. I hope this helps
Since U=0,
h=1/2gt^2 (h= ut+1/2gt^2, U=0)
h=1/2*10*4*4
h=80m
Work done = force * distance moved (in direction of the force)
force= mass* acceleration
force=58.1N
58.1*(5.8*10^4)
=3,369,800 J
The answer is A.) igneous rocks