Physical education?
To tone and coordinate youngsters, I assume.
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Since I have nothing to do with PE 1 I have absolutely no expectations in it.
The diagram of IE plus SE equals PE represents the relationship between kinetic energy (KE), potential energy (PE), and the total mechanical energy (E) of an object. In this diagram, IE represents the initial energy, SE represents the additional energy supplied, and PE represents the potential energy gained. The total mechanical energy of the object is the sum of the initial energy and the additional energy, which can be converted into potential energy.
50,000
PE = mgh PE = 95 x 45 x 9.81 kg.m.ms-2 = 41.94 KJ
No. If it is a ratio (as it is) then it has no units: it is a pure number.