Assignment: write an argumentative essay stating your views and whether you either agree or disagree with his assertion that there are significant class differences among americans and these differences have a significant impact on the way we live and our upward mobility. in other words, do you believe anyone can achieve the american dream regardless of class difference?
gregory mantsios author of class in america asked several questions before expressing his views on "the economic spectrum: are there significant class differences among americans? if these differences do exist, are they getting bigger or smaller? do class differences have a significant impact on the way we live? how much upward mobility is there in the united states? finally, does everyone in the united states really have an equal opportunity to succeed and have an equal voice in our democracy? (380).

quite an interesting way to teach topic sentences, because the answer to this question is the best definition of a topic sentence that one can present, it is as if answering the questions taught you how to do it, this is some real teaching, it is terribly well-done.

the topic sentence in this paragraph is:

topic sentences writers stay on track and keep a paragraph from becoming an aimless collection of sentences about an idea.

which incidentally tells you what a topic sentence should be.

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: