Which detail from "President Obama's Third Annual Back to School Speech" best supports the idea that teachers can have a meaningful effect on their students' lives. "They don't --they sure don't do it for the big salary. They do it for you. They do it because nothing gives them more satisfaction than seeing you learn. " "And they say, I had something to do with that, that wonderful young person who is going to succeed." "They live for those moments when something clicks; when you amaze them with your intellect or your vocabulary, or they see what kind of person you're becoming." "Teachers are the men and women who might be working harder than just about anybody these days."

obama was told in early july 2004 that he was chosen to deliver the address, and he largely wrote the speech himself, with later edits from the kerry presidential campaign.

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:

ayy yo mom let me get your number and your looks because look at my background thats me

explanation: