Tell me whether does job work more with data or things or people please I need help with this homework Social Worker

Air Traffic Controller

Butcher

Counselor

Doctor

Mechanic

Model

Welder

Teacher

Writer

Social worker: people

Air Traffic Controller:

Butcher: animals

Counselor: people

Doctor: people

Mechanic: things and people

Model: people

Welder: things

Teacher: people

Writer: things

can you tell me the answers to this

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: