What event do you think caused the universe to start expanding?

Well personally, I think it all started in the beginning, when g-d created the heaven and the Earth.  You see, the Earth was void and chaotic, and there was nothing but darkness, and the spirit of g-d moved across the depth of everything.  At one point, g-d said "Be light" and there was light.  G-d was satisfied with the light, and he separated the light from the darkness.  

Of course, there wasn't any "mass" yet ... not even elementary 'subatomic' particles.  So, in order to allow the light to separate from the darkness, the density had to decrease enough to allow the energy to decouple from the primordial mass/energy medium.  And we all know that the only way to drastically reduce the density of everything you've got is to rapidly expand it.  Sure enough, modern Cosmology sees evidence of a huge exponential inflation beginning around 10⁻³⁶ second after the 'big bang' singularity.  

In my opinion, THAT's how the expansion began.

It all goes together, and modern Western religion and science are in complete agreement ... at least for 10⁻³⁶ seconds after Creation.

insects!

explanation:

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: