Coupled spin-1/2 particles [8 marks] suppose we have two spin-1/2 particles, with associated spin operators sı and s2. the simultaneous eigenstates of siz and s2. are mi, m2), which we can write as the spins interact with each other, such that the two-prid hamitonian i (2.2) where is a real constant (with units of energy divided by ћ2). (a) does the hamiltonian (2.2) have rotational symmetry? justify your answer. (b) show that it, and iļ. l) are eigenstates of the hamiltonian (2.2), and determine their energy eigenvalues (c) determine the remaining energy eigenstates that involve the states it, ) and |,) along with the corresponding energy eigenvalues (d) for α > 0, identify the ground state and discuss whether or not it is entangled. how do your results change when α < 0?

when cloud cover increases then the suns ray's which provides the earth with light and warmth gets covered due to the due to the suns ray's being blocked, the temperature in that region

therefore to conclude i would like to say that,

=more the cloud cover, the lesser the

happy to

pls mark as brainliest.

the closer the planet is to the sun, the larger the gravity

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

i think its c if i'm wrong