Which lines from “nefarious war,” by li po, best express the theme of the poem?
a)“oh, nefarious war! i see why arms /
were so seldom used by the benign sovereigns.”
b)“our three armies are worn and grown old.”
c)“last year we fought by the head-stream of the so-kan, /
this year we are fighting on the tsung-hoo road.”
d)“our three armies are worn and grown old.”

this is an ad? the hell is your audience bro xd

explanation:

the answer is five curious-looking beans

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: