Which of the following energy transport processes involves mass motions of material?

a. radiation b. conduction
c. convection d. All of the other choices are correct.


c

Physics & Space Science

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Exclusion Principle: An atom with atomic number 6 is in its ground state. How many electrons are in its outermost shell?

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

Where does the asteroid belt lie?

a. between Mars and Jupiter b. between Uranus and Neptune c. between Neptune and Pluto d. beyond Neptune e. well beyond the orbits of the planets

Physics & Space Science

State the charge-force law

What will be an ideal response?

Physics & Space Science

Melanie says that when a diver enters an underwater cave of height h, the pressure on her is no greater than ?Wgh. Rosalind says that if the bottom of the cave is a distance H below the water surface, the pressure on the soles of the diver's feet can reach ?WgH. Which one, if either, is correct? (The density of water is ?W.)

a. Melanie, because the roof of the cave absorbs the water pressure from above. b. Melanie, because only the fluid directly above any volume of the fluid can contribute to the pressure on that volume. c. Rosalind, because a fluid exerts equal pressure in all directions at a given depth. d. Rosalind, because the pressure also depends on the density, ?c, of the material above the cave roof, so that p = ?cg(H ? h) + ?Wgh. e. Melanie, because the pressure equals p = ?WgH ? ?cg(H ? h).

Physics & Space Science