In a scanning electron microscope, the detectors detect photons that have been reflected from the surface in various patterns. (a)True
(b)False

the simple machine has three main features. they are:

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

frequency or wavelenth of em radiation in a vacuum