Which of the following is most likely to be a warning that an advertisement
relies on pseudoscience, not science?
o
a. testimony is provided from scientists who are experts in the field.
o
b. paid actors are used in the ad instead of actual customers.
o
c. unbiased experimental data are presented to support their claims.
d. a link is given to the results that were published in a peer-reviewed
journal.

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?