Examlex
A down quark can be changed into an up quark (plus other particles perhaps) by:
Q4: A photon in light beam A has
Q4: The approximate amount of energy emitted in
Q8: A metastable state is important for the
Q11: Electromagnetic radiation with a wavelength of 3.5
Q35: In terms of quark content a
Q39: Any meson is a combination of:<br>A)three quarks<br>B)two
Q48: Two events occur simultaneously on the x
Q53: An electron participates in:<br>A)the electromagnetic and weak
Q57: At the second minimum adjacent to the
Q72: Six electrons are in a two-dimensional square