Please provide work and explanations!
given
m1 = 3*10^-13 kg
m2 = 5*10^-13 kg
ri = 2.6*10^-3 m
rf = 2*r1
= 2*2.6*10^-3
= 5.2*10^-3 m
Question 2)
Workdone by us, W_us = Uf - Ui
= -G*m1*m2/rf - (-G*m1*m2/rf)
= -6.67*10^-11*3*10^-13*5*10^-13/(5.2*10^-3) - (-6.67*10^-11*3*10^-13*5*10^-13/(2.6*10^-3))
= 1.92*10^-33 J <<<<<<<-----Answer
Question 3)
Workdone by gravitational force,
W = Ui - Uf
= -6.67*10^-11*3*10^-13*5*10^-13/(2.6*10^-3)- (-6.67*10^-11*3*10^-13*5*10^-13/(5.2*10^-3) )
= -1.92*10^-33 J <<<<<<<-----Answer
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