Question 7 The following question has two parts. First, answer Part A. Then, answer Part B.
Part A:
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Which sentence BEST explains why Emma befriends Harriet?
A
Harriet lacks refinement, and Emma wants a project.
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.
B
Harriet does not have many friends, and Emma is very sociable.

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Harriet wants to become a member of high society, and Emma can help her.
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D
Harriet wants to be married, and Emma knows the eligible bachelors.
Part B:
Which excerpt from the text BEST supports your answer to Part A?

recent brain research has shown some surprising benefits as a result of formal musical training. learning to play a musical instrument appears to develop parts of the brain that can even influence academic results. the studies indicate that the earlier a child begins training, the more benefits there are. one such study showed that children who began musical studies before the age of seven had a more developed brain in the region where language production and auditory processing take place. scientists believe there is mounting evidence to show that early musical training can improve brain function.

explanation:

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:

you are perfect just the way you are