Write a poem about black history month ( struggles and achievement's )

Once, I was enslaved chained and bound but I escaped

Once, I had a dream and a speech of power but I got killed

Once, I couldn't breath and neck kneed but I was killed

Once, I could not catch a break but I protested

Once, I was power and couldn't be shaken but I still am

Once- Long Live Power

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:

i remeber a bit, but i don't have the exact qoute.

it said that everytime you chopped a head off a new one grew in it's place.

explanation: