E = pc vs E= mv^2/2

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Timmy Nguyen Dis 1I
Posts: 107
Joined: Sat Aug 17, 2019 12:17 am

E = pc vs E= mv^2/2

Postby Timmy Nguyen Dis 1I » Sat Oct 19, 2019 9:28 pm

Hey just asking when do we use one or the other?

Samuel Tzeng 1B
Posts: 103
Joined: Sat Aug 24, 2019 12:15 am

Re: E = pc vs E= mv^2/2

Postby Samuel Tzeng 1B » Sat Oct 19, 2019 9:31 pm

E=pc=mc^2 only applies to em radiation

E=mv^2/2 is used for kinetic energy of an object

Ashley Osorio
Posts: 54
Joined: Thu Jul 11, 2019 12:17 am

Re: E = pc vs E= mv^2/2

Postby Ashley Osorio » Sat Oct 19, 2019 9:31 pm

It al depends on the information you have before hand and what you're trying to find.


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