Ms. aaron's is on a plane headed west at 930 km/hr. she walks towards the back of the plane at 10 km/hr. 1. what is the speed and direction of the plane if mrs. aarons is the point of reference? 2. what is the speed of mrs. aarons using the ground as a frame of reference? 3. another plane is traveling the same direction as the first at 930 km/hr. what is the speed of mrs. aarons relative to the other plane? 4. another plane is traveling east at 750 km/hr. what is the speed and direction of the first plane using the second as a frame of reference. 5. what is the velocity of mrs. aarons relative to the other plane in problem #4?

See below in bold.

Explanation:

1. That would be 930 -10 = 920 km/hr due West.

2.The speed of Mrs Aarons relative to the ground is 930 - 10 = 920 km/hr.

3. This would be 10 km  due East.

4.This is 930 - 750 = 180 km/hr West.

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: