The primary difference between a scientific theory and a hypothesis is that a theory is: a prediction of an experimental outcome not yet tested well tested not yet widely accepted by scientists

The correct answer will be option-A.

Explanation:

A scientific theory is an elaborate and deep explanation of a natural phenomenon in nature.

The scientific theory is formed after the results and evidence from various experiments of a different hypothesis are combined due to which theory explains the depth of any phenomenon.  The scientific theory is different from a scientific hypothesis as a hypothesis is a limited explanation based on results but a theory is based on the predictions of the experimental outcome.

Thus, option-A is the correct answer.

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:

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.