Gudrun and Ursula were co-mates. The second child, with her long, sleepy body and her endless chain of fancies, would have nothing to do with realities. She was not for them, she was for her own fancies. Ursula was the one for realities. So Gudrun left all such to her elder sister, and trusted in her implicitly, indifferently. Ursula had a great tenderness for her co-mate sister. When the author calls the two girls "co-mates," what does he mean?

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explanation:

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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:

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explanation: