Imagine that you are on the Moon while your friend experiences a total solar eclipse on Earth. What do you see?
A) You also see a solar eclipse, except with the Sun completely covered by the Earth.
B) You see a relatively small shadow on an otherwise full Earth.
C) You see a full Earth, just as you would if there were no eclipse at this time.
D) You cannot see the Earth because it is blocked by the Sun.
B) You see a relatively small shadow on an otherwise full Earth.
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Multiple-Object Accelerating Systems: As shown in the figure, two blocks are connected by a very light string, and the upper block is pulled upward by a different string. The masses of the upper and lower blocks are 300 g and 240 g, respectively. The string between the blocks will break if its tension exceeds 3.6 N, and the string that pulls the combination upward will break if its tension exceeds 7.8 N.(a) What is the largest upward acceleration that the blocks can be given without either string breaking?(b) If the upward acceleration is slightly higher than this, which string breaks, the upper one or the lower one?
What will be an ideal response?
A rope is connected to a scale on the left and exerts a force 
and a rope is connected to the same scale on the right and exerts a force 
The scale shows a reading of 
= 120 N. The values of 
and 
are
a. 
b. 
c. 
d. 
Hoe can you determine your latitude if you live anywhere above the equator
a) Your latitude will be approximately equal to the angular separation of the pointer stars in the Big Dipper b) Your latitude will be approximately the angular separation of the Sun and the Moon c) Your latitude will approximately the altitude of Polaris
What is the occupancy probability at an energy 1.0% above a Fermi level of 7.0 eV at 300 K?
A) 0.06% B) 1.0% C) 3.2% D) 6.3% E) 12%