Andre has a small glass with cold juice in it. he walks outside on a hot day, and places the glass on a table in front of his house. he has to go back in his house, forgets about his juice, and comes back outside after a few hours. which statement is most likely to be true?

a.
the juice is at a higher temperature than the glass surrounding it.
b.
the juice is losing heat to the glass around it.
c.
the juice is at the same temperature as the air around it.
d.
the juice is losing heat to the air above it.

the juice is losing heat to the glass around it

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: