Does it make sense that there are such noticeable differences in the jovian planets? Why or why not?
What will be an ideal response?
All four formed in the outer solar system where it was cold enough for hydrogen ices to form. Because those compounds are so much more abundant than rock and metal, some of the ice-rich planetesimals grew to great size. Once they were big enough, they could draw in the hydrogen and helium gases surrounding them. Their differences stem from having captured different amounts of those gases. Those that formed farther from the Sun originated from particles that were more widely spread out, so it took them longer to form. Since all of them stopped accreting gas at the same time, the more distant ones had less time to capture gas and ended up smaller in size.
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Answer the following statement true (T) or false (F)
Order the interior layers of the Sun from hottest to coldest.
A) radiation zone, core, convection zone, photosphere B) core, radiation zone, convection zone, photosphere C) photosphere, convection zone, radiation zone, core D) photosphere, convection zone, core, radiation zone
Ellen says that whenever the acceleration is directly proportional to the displacement of an object from its equilibrium position, the motion of the object is simple harmonic motion. Mary says this is true only if the acceleration is opposite in direction to the displacement. Which one, if either, is correct?
A. Ellen, because ?2 is directly proportional to the constant multiplying the displacement and to the mass. B. Ellen, because ?2 is directly proportional to the mass. C. Mary, because ?2 is directly proportional to the constant multiplying the displacement and to the mass. D. Mary, because ?2 is directly proportional to the mass. E. Mary, because the second derivative of an oscillatory function like sin(?t) or cos(?t) is always proportional to the negative of the original function.
What is one thing that electrical engineers do to minimize power loss between the plant and your home?
a. Increase the resistance in the wires between the two as much as possible. b. Use thinner wires. c. Coil the wire to increase the distance between the two. d. Lower the resistance between the two as much as possible. e. Build parallel circuits to take pressure off the generators.