The lunar mare radioactively date back to 4.6 billion years, at the origin of the Moon, hence their dark color due to this aging
Indicate whether the statement is true or false
FALSE
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Parallel-Plate Capacitor: An ideal parallel-plate capacitor has a capacitance of C. If the area of the plates is doubled and the distance between the plates is halved, what is the new capacitance?
A. C/4 B. C/2 C. 2C D. 4C
Two objects attract each other gravitationally. If the distance between their centers doubles, the gravitational force
A. is a half. B. doubles. C. is a fourth. D. quadruples.
Answer the following statement(s) true (T) or false (F)
1. Consider the system where NA = NB = 1000, U = 5999? (see figure T2.6). Suppose that we can measure each object’s energy to within 0.01U ? 60? (the size of one bin). Once the system has reached a macropartition in the most probable bin, it will never spontaneously move to a macropartition outside that bin.
A pendulum bob of mass m is set into motion in a circular path in a horizontal plane as shown in the figure. The square of the angular momentum of the bob about the vertical axis through the point P is
a.
m2 gl3 sin4 ?/cos ?
b.
m2 gl3 sin3 ?/cos ?
c.
m2 gl3 sin2 ?/cos ?
d.
m2 gl3 sin ?/cos ?
e.
m2 gl3 sin2 ?