When an object is solely under the influence of conservative forces, the sum of its kinetic and potential energies does not change
A) True B) False
A
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An industrial flywheel has a greater rotational inertia when most of its mass is
A) nearer the rim. B) nearer the axis. C) uniformly spread out as in a disk.
If a 10-V battery, with negligible internal resistance, and a 15-? resistor are connected in series, what is the amount of electrical energy transformed to heat per coulomb of charge that flows through the circuit?
a. 0.67 J b. 1.5 J c. 10 J d. 150 J e. 25 J
In Newton's second law, mass and acceleration for constant force are:
a. not related. b. inversely proportional. c. directly proportional. d. additive. e. two ways of describing the same thing.
Alfred Wegener postulated that the continents were once part of a single supercontinent that he called ______________
Fill in the blank(s) with correct word