# Gcse maths the lower bounds

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#1
E=mc^2 c=3.0X10^8 (2 s.f), m= 2.4 (2 s.f)
Calculate the lower bound of E. Calculate the upper bound of E.
0
4 years ago
#2
(Original post by JJIANG)
E=mc^2 c=3.0X10^8 (2 s.f), m= 2.4 (2 s.f)
Calculate the lower bound of E. Calculate the upper bound of E.
What have you tried?
0
4 years ago
#3
ngl thought this was some petition to lower grade boundaries
1
4 years ago
#4
(Original post by surina16)
ngl thought this was some petition to lower grade boundaries
Same!
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#5
(Original post by RDKGames)
What have you tried?
the answer ：the lower bound 2.05X10^17,the upper bound 2.28X10^17，but i can't work out
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4 years ago
#6
(Original post by surina16)
ngl thought this was some petition to lower grade boundaries
Loooooool

Posted from TSR Mobile
0
4 years ago
#7
(Original post by JJIANG)
the answer ：the lower bound 2.05X10^17,the upper bound 2.28X10^17，but i can't work out
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#8
(Original post by RDKGames)
Yeah，i work out now ，c=2.95X10^8
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4 years ago
#9
(Original post by JJIANG)
Yeah，i work out now ，c=2.95X10^8
Yeah that would be the lower bound of the speed of light, you also need the lower bound of the mass to go with it.
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#10
(Original post by RDKGames)
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