Read the excerpt from "How a Cat Played Robinson Crusoe." In her restlessness she wandered to the farther side of the island where, in a sunny recess of the shore facing the mainland, she found a patch of bare sand, free of ice cakes and just uncovered by the tide. Opening upon this recess were the tiny entrances to several of the mouse tunnels.
Close beside one of these holes in the snow the cat crouched, quivering, intent. For ten minutes or more she waited, never so much as twitching a whisker. At last a mouse thrust out its little pointed head.

How does this scene help develop the plot of the story?

a. It provides a resolution to the cat's loneliness on the island.

b. it helps resolve the cat's conflict of how to find food during the winter.

c. It provides exposition of what the cat does to keep herself occupied on the deserted island.

d. It helps explain the desolation of the island in the middle of winter.

to gain popularity at school, fitzgerald wrote plays for the school and cast himself as the star. he also joined one of the universitys most prestigious clubs.

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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: