Why does Ponyboy say he had the knife and he killed Bob when it was Johnny?*
O Pony isn't confused. He killed Bob.
O
Ponyboy is confused, potentially due to mental illness such as PTSD (post-traumatic
stress disorder)
Ponyboy is angry and wants to take the fall so Johnny doesn't go to prison
O
Ponyboy never says he had the knife

Ponyboy is confused, potentially due to mental illness such as PTSD (post-traumatic stress disorder)

Explanation:

He wants to believe that Johnny isn´t dead.

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: