A stone has initial potential, kinetic and internal energy 7 J, 10 J a – McqOptions

MCQOPTIONS

1.	A stone has initial potential, kinetic and internal energy 7 J, 10 J and 2x J respectively, if the final kinetic energy, potential energy and internal energy are 5 J, 21 J and x respectively, what is the final internal energy?
A.	2 J
B.	4 J
C.	5 J
D.	9 J
Answer» E.

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