Which of the following is a compound sentence? OTwo goblins shouted "Trick or Treat!” as I opened the door.
O I opened the front door with a big bowl of candy bars in one hand.
O I got up and answered the door, but when I opened it, there was no one there.
O I thought I heard the doorbell, but it was coming from the TV.

the characters in string all have major secrets that they strive to avoid revealing throughout the play.

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: