"Firewalkers" step on the hot ashes and coals from a wood fire without getting their feet burned. How might this be possible?
a. They have magical powers.
b. The ashes are poor conductors of heat.
c. They do get burned but enjoy the publicity.
d. none of the above
B
You might also like to view...
Betelgeuse is the bright red star representing the left shoulder of the constellation Orion. All the following statements about Betelgeuse are true. Which one can you infer from its red color?
A) Its surface is cooler than the surface of the Sun. B) It is much brighter than the Sun. C) It is much more massive than the Sun. D) It is moving away from us.
If a Cu2+ ion drops through a potential difference of 12. V, it will acquire a kinetic energy (in the absence of friction) of
A) 12. eV. B) 6.0 eV. C) 24. eV. D) 12. J. E) 6.0 J.
An excited atom decays to its ground state and emits a photon of red light. If instead the decay is to an intermediate state, then the light emitted could be
A) red. B) violet. C) blue. D) any of these E) none of these
Explain the process of small irregular galaxies evolving into spirals and giant ellipticals
What will be an ideal response?