Physics ( just need a lil help multiplying
posted by Bongo
Calculate the force of gravity between a 2.50 kg newborn baby and a 80.0 kg doctor standing 0.250 m away. G = 6.67 E 11 N*m2/kg2
My work
Fg = (Gm1 Gm2) /d^2
m1=2.50 kg
m2=80.0 kg
d=0.250 m
g=6.67 E 11 N*m2/kg2
Fg = (Gm1 Gm2) /d^2
Fg= g ( 2.50 kg)(80.0 kg)/0.250m^2
Fg= (6.67 E 11 N*m2/kg2)( 2.50 kg)(80.0 kg)/0.250m^2
Fg=
I keep messing up at the end i cant get the right answer. I just needto know how to multiply that last part, im getting confused with the gravity part of it...

drwls
You have all the numbers correct in the formula, so all you have to do is make the calculation. Having 0.250^2 (which is 1/16) in the denominator is the same as multiplying by 16.
I get 2.13*10^7 Newtons for the answer. All of the other dimensions cancel (kg and m) out 
drwls
I had the advantage of using a hand calculator with scientific notation. I'm lazy.
Respond to this Question
Similar Questions

physics
Proponents of astrology claim that the positions of the planets at the time of a baby's birth will affect the life of that person in important ways. Some assert that this effect is due to gravity. Examine this claim with Newton's law … 
physics
Proponents of astrology claim that the positions of the planets at the time of a baby's birth will affect the life of that person in important ways. Some assert that this effect is due to gravity. Examine this claim with Newton's law … 
physics
Proponents of astrology claim that the positions of the planets at the time of a baby's birth will affect the life of that person in important ways. Some assert that this effect is due to gravity. Examine this claim with Newton's law … 
physics
Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 60 kg, who is 0.5 m from the baby. 1 N Which exerts more gravitational force on the baby, Mars or the obstetrician? 
physics
Calculate the force of gravity between a newborn baby of mass 2.9 kg and the obstetrician of mass 100 kg, who is 0.58 m from the baby. 
physics
Calculate the force of gravity between a newborn baby (mass = 2.6 kg) and the planet Mars (mass = 6.4 * 10^23 kg) when Mars is at its closest to Earth (distance = 5.6* 10^10m). 
principles of physics
my last one!! Calculate the force of gravity between a newborn baby of mass 2.9 kg and the obstetrician of mass 100 kg, who is 0.58 m from the baby. 
Physics
Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 75 kg, who is 0.5 m from the baby. N Which exerts more gravitational force on the baby, Mars or the obstetrician, given that Mars has a … 
physics
Calculate the force of gravity between a newborn baby of mass 4 kg and the obstetrician of mass 80 kg, who is 0.1 m from the baby. 
physics
calculate the force of gravity between a newborn baby of mass 2.9kg and the obstertrician of mass 100kg, who is 0.48m from the baby.