What is the meaning of Thoreau's statement I have learned that the swiftest traveller is he that goes afoot? 1. Walking for travel is the preferred method, because it is a healthy form of exercise.
2. People should travel by walking to places, so they can enjoy the views of the countryside.
3. Companions usually slow someone down, so it is best to travel by walking and to travel alone.
O 4. Since walking is free, a person doesn't have to work to pay for the fare and can start immediately.

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:

it would be offer because the group is offering all at once.

i believe that the answer is true.