According to the big bang theory, matter clumped into stars because of

The answer is:

According to the Big Bang Theory, matter clumped into stars because of the force of the gravity.

The explanation:

The model of this theory show how the universe expanded from a very high density and very high temperature state and offers a comprehensive explanation for a broad range of phenomena, including the abundance of light elements.  

After the initial expansion, the universe cooled  subatomic particles and later simple atoms are formed .

Giant clouds of these primordial elements later coalesced through gravity in halos of dark matter, Then the stars and galaxies visible today  formed .

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: