Read this excerpt from “the pedestrian” by ray bradbury in which leonard mead considers how technology has isolated people:
everything went on in the tomblike houses at night now, he thought, continuing his fancy.
which statement best introduces this information in an essay?
a. as leonard walks the empty streets at night, he considers the houses to be like tombs that have isolated people from each other.
b. while walking the empty streets at night, leonard muses on the isolating effects of technology, thinking, “everything went on in the tomblike houses at night now.”
c. leonard mead ridicules his neighbors’ dependence on tv, the latest form of technology, and how it replaces all forms of human contact, calling their homes “tomblike.”
d. “everything went on in the tomblike houses at night now, he thought, continuing his fancy, “leonard muses as he walks the empty streets at night.

B. While walking the empty streets at night, Leonard muses on the isolating effects of technology, thinking, “Everything went on in the tomblike houses at night now.”

Explanation: When introducing an information in an essay or any text, it is important to take in consideration certain aspects, like, for example, the introduction should not be redundant or repetitive compared to the information it introduces. It also should help explain the information. In this case, the correct answer is option B, because it helps to explain that Leonard compares the houses to tombs, because of the isolating effects of technology.

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: