- #1
starfox07
- 3
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Hey all,
"Suppose that we could use the energy released
when 4 g of antimatter annihilates 4 g of
matter to lift a mass 1 km from the Earth’s
surface.
How much mass could we lift? Answer in
units of kg."
e=mc^2
w=fd
f=ma
EDIT: I think the proper way is using the potential energy equation [energy=mass*gravity*height] after I have found energy from [e=mass*speed of light^2] Is this right?
Would the total energy released be from .004kg or from .008kg of matter?
Homework Statement
"Suppose that we could use the energy released
when 4 g of antimatter annihilates 4 g of
matter to lift a mass 1 km from the Earth’s
surface.
How much mass could we lift? Answer in
units of kg."
Homework Equations
e=mc^2
w=fd
f=ma
The Attempt at a Solution
I was attempting to find the energy with e=mc^2 and using .004kg as the mass. Then I tried using work(energy)=force*distance and force=mass*acceleration (using gravitational potential energy) but my answer was incorrect. For the record, i answered 3.67e10 kg but no luck. I'm stumped. :(EDIT: I think the proper way is using the potential energy equation [energy=mass*gravity*height] after I have found energy from [e=mass*speed of light^2] Is this right?
Would the total energy released be from .004kg or from .008kg of matter?
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