Which excerpt from "I'm Not Thirteen Yet" best helps the reader to imagine the events and understand the writer's
experiences?
I heard the toilet flush and scurried into an empty stall. Their giggles felt like needles.
O I made friends, but not with Margaret.
However, one evening, Margaret and I wound up on the same team during a color war.

The answer is A

Explanation:

it help us understand what she heard

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: