After the sun exhausts its nuclear fuel, its ultimate fate will be to collapse to a white dwarf state. in this state, it would have approximately the same mass as it has now, but its radius would be equal to the radius of the earth.(a) calculate the average density of the white dwarf. kg/m3(b) calculate the surface free-fall acceleration. m/s2(c) calculate the gravitational potential energy associated with a 3.91-kg object at the surface of the white dwarf. j

The bubbles in a carbonated soft drink are produced when carbonic acid decomposes to form carbon dioxide and water. in a closed system, this equilibrium exists as why does a carbonated soft drink lose carbonation when the container is left open? a.water evaporates, which favors the formation of h2co3. b.pressure decreases, which favors the formation of h2co3. c.the open container warms up, which causes more gas to escape. d.co2is removed, which favors the formation of h2co3.