A balloon holds 50.0 mL of nitrogen at 25° C and a pressure of 736 mm Hg. According to Boyle's Law, answer the following questions for 2 points each:

What will be the effect on the pressure inside the balloon if the volume is decreased to 25 mL?
Explain how this would demonstrate Boyle's Law.
Explain Boyle's Law in terms of the kinetic energy of molecules.

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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:

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