Two pictures show friends playing with a string telephone. in which picture can they hear each other
2 answers:
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Answer:
E = 5.5 10² N /C
Explanation:
For this exercise let's use Newton's second law
F = m a
the force is electric
F = q E
we substitute
q E = m a
E = (1)
the acceleration can be found with kinematics,
v = v₀ + a t
as the particle starts from rest v₀ = 0
a = v / t
a = 160 / 2.90
a = 55.17 m / s²
the relationship
q / m = 0.100 C / kg
m / q = 10 kg / C
we use equation 1
E = 10 55.17
E = 551.7 N / C
E = 5.517 10² N / C
ask for the result with two significant figures
E = 5.5 10² N /C