Age Questions
D
whether or not to get a car
2
How does the author compare riding the bus and driving a car?
A
riding the bus is cheaper than driving a car
B) riding the bus is more reliable than driving a car
riding the bus gives you more control than driving a car
D
riding the bus is faster than driving a car
3
When riding the bus, you do not have control over where the

smh

explanation:

jim mohr

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:

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