If an object is hollow, where is its center of mass?
a. At the nearest point nearest the center where mass can be found.
b. At the center, even though there is no mass actually there.
c. Halfway between the hollow center and the nearest point where there is mass.
d. All along the outer shell of the hollow object.
e. At the point between the center and the edge where the average mass along that line is greatest.
b
You might also like to view...
The Kuiper Belt is an "outer asteroid belt" consisting of what types of solar system bodies?
A) icy cometlike bodies B) asteroids C) meteoroids D) jovian planets E) terrestrial planets
I attach a 4.0-kg block to a spring that obeys Hooke's law and supply 3.4 J of energy to stretch the spring. I release the block; it oscillates with period 0.15 s. The amplitude is
a. 2.2 cm. b. 3.1 cm. c. 1.6 cm. d. 20 cm. e. 4.4 cm.
When heat is added to boiling water, its temperature
A) increases. B) decreases. C) remains unchanged. D) none of the above
A piece of glass has a thin film of gasoline floating on it. A beam of light is shining perpendicular on the film
If the wavelength of light incident on the film is 560 nm and the indices of refraction of gasoline and glass are 1.40 and 1.50, respectively, what is the minimum nonzero thickness of the film to see a bright reflection? A) 500 nm B) 400 nm C) 300 nm D) 200 nm E) 100 nm