Equilibrium: A child is trying to stack two uniform bricks, each 24 cm long, so they will protrude as far as possible over the edge of a table without tipping over, as shown in the figure. What is the maximum possible overhang distance d?
A. 10 cm
B. 12 cm
C. 14 cm
D. 16 cm
E. 18 cm
Answer: E
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Is there any place on Earth where we can see stars rise in the west and set in the east (rather than rising in the east and setting in the west)? Why or why not?
A) yes, in the Southern Hemisphere, because the sky appears backward there B) yes, on Earth's equator, because it is halfway between the poles C) no, because the rising and setting of stars is caused by Earth's west to east rotation D) no, because the stars that rise in the west and set in the east are too dim to be seen by the naked eye
Before turning into a white dwarf, a star like the Sun will spend most of its life as a main sequence star.
Answer the following statement true (T) or false (F)
Determine the energy stored by C4 when C1 = 20 ?F, C2 = 10 ?F, C3 = 14 ?F, C4 = 30 ?F, and V0 = 45 V
a.
3.8 mJ
b.
2.7 mJ
c.
3.2 mJ
d.
2.2 mJ
e.
8.1 mJ
The largest plutons are called
a. sills. b. dikes. c. laccoliths. d. batholiths.