51. A person assembling a tool one week after reading the instructions can remember the first and last
steps of the procedure but not the middle ones.
This best illustrates which of the following?
(A) Encoding failure
(B) Social facilitation
(C) Retrograde amnesia
(D) Repression
(E) The serial position effect

PLEASE HELP I need help I’m struggling

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Some material consisting of a collection of microscopic objects is kept at a high temperature. a photon detector capable of detecting photon energies from infrared through ultraviolet observes photons emitted with energies of 0.3 ev, 0.5 ev, 0.8 ev, 2.0ev, 2.5ev, and 2.8ev. these are the only photon energies observed. (a) draw and label a possible energy-level diagram for one of the microscopic objects, which has four bound states. on the diagram, indicate the transitions corresponding to the emitted photons. explain briefly. (b) would a spring–mass model be a good model for these microscopic objects? why or why not? (c) the material is now cooled down to a very low temperature, and the photon detector stops detecting photon emissions. next, a beam of light with a continuous range of energies from infrared through ultraviolet shines on the material, and the photon detector observes the beam of light after it passes through the material. what photon energies in this beam of light are observed to be significantly reduced in intensity (“dark absorption lines”)? explain briefly.

Rohit is trying to tune an instrument