Which statement best describes the process that forms a star? 1.Gravity condenses a cloud of dust and gas, initiating nuclear fusion.
2.A parent star explodes in a supernova, producing several daughter
stars.
3.A daughter star cleaves off of a parent star that has become too
massive to maintain equilibrium.
4.Nuclear fission splits atoms, releasing huge amounts of energy into
space.

If the temperature were raised very high, classically what would we expect the heat capacity per object to be for this one-dimensional system? give a numerical value. chigh t = __ j/k/object (one reason for the discrepancy is that the high-temperature limit assumes that the number of oscillators is large (n > > 1), which is not the case in this tiny system.)

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

Should we celebrate the voyages of zheng he mini q answer key