PLEASE HELP ME OU 1. Determine if 34.6 x 2 3.7 is in proper scientific notation. Explain your reasoning.

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:

have you got the options? , check if this one is presented there

"i did right in refusing to create a companion for the first creature. he showed unparalleled malignity and selfishness in evil: he destroyed my friends; he devoted to destruction beings who possessed exquisite sensations . ." (322).