If L represents angular momentum, I represents rotational inertia, p represents linear momentum, m represents mass, and r represents a distance, which of the following can represent kinetic energy?
a. p2/2m
b. L2/2I
c. rpI
d. all of the above
e. both (a) and (b)
e
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Tiny amounts of lithium and beryllium were formed in the big bang
a. True b. False Indicate whether the statement is true or false
Compare and contrast latitude and declination. How does each relate to your position on Earth?
What will be an ideal response?
When an acrobat hangs motionless from a pair of rings
a. she has no measurable weight. b. her weight depends on the angles the ropes make with the ceiling. c. her weight is reduced by the upward force the rings exert on her. d. her weight is increased by the upward force the rings exert on her. e. she exerts a gravitational force on the Earth that is equal to the sum of the forces the rings exert on her.
An eroded surface of metamorphic rocks on which a horizontal bed rests is called a
A) strata. B) dike. C) nonuniform surface. D) nonconformity.