Consider a complete set of 1-d orthonormal stationary states , {¢n(x)} (let them be the energy cigenfunctions of the hamiltonian h). a general wavefunction x, 1) can be expanded in this basis with coefficients of expansion c (a) find the general expression for the expectation value (h) wherej is an integer power to raise the operator. reduce this expression as much as possible (though the answer is still no more than a few lines). (b) explain the consequences of an observation of the energy of this system. what is measured and what happens to the wavefunction? explain how this is consistent with your previous answer (c) write the uncertainty of an energy measurement ae. simplify as much as possible, if at all

the independent variable, the one that is intentionally manipulated, is whether or not the car hits the barrier.

the dependent variable, the one that you measure the response in, is the distance that the washers travel.

b.transmitters send radio waves, and receivers capture radio waves.

more than, less

less than, more

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