The maximum extent of a vibration, measured from the position of equilibrium.
The meaning of equilibrium is being in the position of physical balance.
Answer:
A) E = 3.70*10^{4} N/C
B) E = 2.281*10^3 N/C
Explanation:
given data:
charge density 
length of wire = 9.50 cm
a) at x = 4.5 m above midpoint, electric field is calculated as

x = 4.5 cm
midpoint a = 4.5 cm = 0.0475 m

E = 3.70*10^{4} N/C
B) when wire is in circle form


= 1.235*10^{-8} C
Radius of circle


r = 1.511*10^{-2} m


E = 2.281*10^3 N/C
It has 52 Protons and 73 Neutrons
A five pushing and letting go of the yoyo
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