Arigid rotor can spin, it has angular momentum that will be quantized. the energy will be entirely rotational kinetic energy. the hamiltonian for a rigid rotor is 12 h= where i is the moment of inertia. the energy eigenstates for the rigid rotor are the same as the eigenstates of the angular momentum of the operator \hat{l}^2. a rigid rotor is in the state \psi (\theta , \phi )=\sqrt{\frac{3}{4\pi}}sin\theta sin\phi , which is normalized.
a.)what are the possible values of the measurement of the angular momentum z-component? what are the probabilities of measuring each possible value?
b.) what is the expectation value of the z-component of the angular momentum for this state or find kl..
c.)what is the expectation value of the magnitude squared of the angular momentum or find .

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:

gas and liquid

i think the answer is a and b

i wish you luck