Read the extract given below and answer the questions (a), (b) and (c) that follow:-
The first thing I noticed on entering his room was a glass case. It
covered a large portion of a wall. On each shelf was displayed a range of
very ordinary objects, not one of which seemed to bear any relationship
to the other. One shelf, for instance, had the root of some plant, a rusted
padlock, an ancient tin of Gold Flake cigarettes, a knitting needle, a
shoe - brush and old torch cells. The man caught me staring at these
objects and said, "None of those things will give you any joy, since only
I know what they are worth
"I believe there is a story behind everything in your collection?"
"Yes, there certainly is. There may be a special incident related to man
things." he said. "But how many of those things would continue to carry
memories of the past? Of the scene they have witnessed? Only very rarely

postive, comparative, superlative - good, better, best

recall how we defined nouns as words capable of having plurals and possessive endings. adjectives (and their first cousin, the adverb) also have a feature that distinguishes them. they come in three states. first, the raw adjective—in its positive state—merely describes the noun modified; it doesn’t care about how this particular person or thing stacks up against other members of the same noun class

d

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:

mark twain, real name samuel langhorne clemens, was an american writer, humorist, entrepreneur, publisher, and lecturer. among his novels are the adventures of tom sawyer and its sequel, the adventures of huckleberry finn, the latter often called "the great american novel". wikipedia