Where would you expect terrestrial planets to form in the solar nebula?
a. within the innermost regions (within about the inner 0.3 AU)
b. anywhere between the innermost regions (within about the inner 0.3 AU) and the frost line
c. anywhere outside the innermost regions (within about the inner 0.3 AU)
d. anywhere outside the frost line
Answer: b. anywhere between the innermost regions (within about the inner 0.3 AU) and the frost line
You might also like to view...
Applications to Astronomy: A white dwarf star with a mass equal to that of the sun is about the size of
A. the sun. B. the earth. C. a basketball. D. a proton.
A nonprismatic cantilever bar has an internal cylindrical hole of diameter d/2 from 0 to x, so the net area of the cross section for Segment 1 is (3/4)A. Load P is applied at x, and load 2P/2 is applied at x 5 L. Assume that E is constant. The length of the hollow segment, x, required to obtain axial displacement ? 5 PL/EA at the free end is:
(A) x 5 L/5
(B) x 5 L/4
(C) x 5 L/3
(D) x 5 3L/5
Instructions: On occasion, the notation 
will be a shorthand notation for 
.
If 
and 
, what is the direction of the vector 
?
A. ?49°
B. ?41°
C. ?90°
D. +49°
E. +21°
A small refrigerator freezer, 16 in x 16 in x 18 in outer dimensions, has an inside surface temperature of 10ºF and an outside surface temperature of 80ºF. If the walls are uniformly 3 inches thick, homogeneous, and with thermal properties the same as Styrofoam, estimate the heat transfer through the walls and door of the refrigerator.
What will be an ideal response?