1 The diagram below shows forces acting on an airplane. The airplane is accelerating to the left at a constant height above the ground.
Lift
Based on the diagram, how do you explain
that the plane is accelerating to the left at a
constant height?
Thrust
Drag
A. Because the lift is equal to the drag.
B. Because the lift is less than the
weight
Weight
C. Because the thrust is equal to the
drag.
D. Because the thrust is greater than the
drag.

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: