Which story premise is most clearly a classic tragedy?A. Ed's temper causes him to lose his status as a famous rock star. B.A comedian enjoys great success, but offstage he often feels lonely. C.No matter how hard she tries, Tris just can't succeed at anything. D.A group of wizards tries to defeat an evil king, but the wizards ultimately fail.

D. A group of wizards tries to defeat an evil king, but the wizards ultimately fail.

Explanation:

its specific purpose is to sell a product to people .

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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: