Read this excerpt from Immigrant Kids.

The second doctor watched for contagious and infectious diseases. He looked especially for infections of the scalp and at the eyelids for symptoms of trachoma, a blinding disease. Since trachoma caused more than half of all medical detentions, this doctor was greatly feared. He stood directly in the immigrant's path. With a swift movement, he would grab the immigrant's eyelid, pull it up, and peer beneath it. If all was well, the immigrant was passed on.

The purpose of this excerpt is

to provide information about eye doctors and to explain how they traveled the immigrant’s path.
to provide information about eye disease and to explain its medical treatment.
to provide information about scalp infections and to explain how they can be prevented.
to provide information about trachoma and to explain how it was diagnosed among immigrants.

D. to provide information about trachoma and to explain how it was diagnosed among immigrants.

Explanation:

This is the excerpt from Russell Freedman's book "The Immigrant Kids" which tells the story of the life of the kids who immigrated to America in early 20th century.

This particular excerpt tells about the routine check-up they needed to pass before entering the country.

It explains the screening for trachoma, an infectious disease that affects eyelids, causing even blindness. Trachoma is caused by a bacteria and is contagious, so this screening's purpose was to prevent infected kids to spread the bacteria through the country.

The excerpt provides brief information regarding the trachoma and explains the process of diagnosing it among the immigrants.

read this passage from the crisis. what rationale is paine using for going to war with great britain? my own line of reasoning is to myself as straight and clear as a ray of light. not all the treasures of the world, so far as i believe, could have induced me to support an offensive war, for i think it murder; but if a thief breaks into my house, burns and destroys my property, and kills or threatens to kill me, or those that are in it, and to "bind me in all cases whatsoever" to his absolute will, am i to suffer it? what signifies it to me, whether he who does it is a king or a common man; my countryman or not my countryman; whether it be done by an individual villain, or an army of them? if we reason to the root of things we shall find no difference; neither can any just cause be assigned why we should punish in the one case and pardon in the other.

it is waged war against an army of countrymen

it would lead to independence from britain

it would be an offensive war

it would be a defensive war

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: