between their centers, is 3.84 ✕ 108 m. Locate the center of mass of the Earth-Moon system as measured from the center
of the Earth.
The monument is made from tens of thousands of small stone blocks of density 3 752 kg/m3. The monument is 14.6 m
high and 61.9 m wide at its base and is everywhere 3.90 m thick from front to back. Before the monument was built many
years ago, all the stone blocks lay on the ground. How much work did laborers do on the blocks to put them in position
while building the entire monument? Note: The gravitational potential energy of an object-Earth system is given by Ug =
MgyCM, where M is the total mass of the object and yCM is the elevation of its center of mass above the chosen reference
mass of the piece.
x = 11.7 cm
y = 13.3 cm
where x is the distance from one end, and λ is measured in grams/meter.
bonds is 106°. If the bonds are long, where is the center of mass of the molecule? (Use a coordinate
system centered in the oxygen atom, with the x axis to the right and the y axis upward.)
(0, 3.00) m, and a 4.40-kg object at (4.00, 0) m. Where should a fourth object of mass 7.00 kg be placed so that the
center of gravity of the four-object arrangement will be at (0, 0)?
center of gravity has moved from C to C’ along the x axis. Show that the distance from C to C’ is R/6. Assume the
thickness and density of the pizza are uniform throughout.
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