Which of the following is not a way to acquire background knowledge about the cultural context of a text?

a.
looking at pictures and reading captions

b.
paying attention to footnotes

c.
skipping every other paragraph while browsing a text

d.
reading the introductory material

C skipping every other paragraph while browsing a text

This is really not an answer for gaining any information let alone background information. Often the introductory material gives background information about the text and is usually thought to be important to help the reader better understand the text. This is also true of pictures and footnotes. They are used to help clarify information and give context the reader may not already know.

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:

what excerpt?

explanation: