Determine the mechanical energy of the subject: a 1 kg pendulum has a speed of 2 m/s at a height of 1 m
a) 9.8j
b) 11.8j
c)2j
d7.8j

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6

number of electrons for neutral cl

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