A proton and an electron are released from rest, with only the electrostatic forces being exerted. Which of the following statements must be true about them as they move toward each other? (There could be more than one correct choice.)
A) The electric potential energy of the system proton-electron keeps increasing.
B) Their kinetic energy keeps increasing.
C) The electric potential energy of the system proton-electron keeps decreasing.
D) Their kinetic energy keeps decreasing.
E) Their acceleration keeps decreasing.
B, C
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An irregularly shaped object is attached to an axle so that it may be spun. If a torque of 250Nm must be applied for 1.25s in order to give it a rotation period of 0.10s, what is its moment of inertia?
A. 5.0
B. 31
C. 4.0
D. 25
Diffusion is described by
A) Boyle's law. B) Kepler's law. C) Charles' law. D) Graham's law. E) Archimedes' law.
A quantity that is capable of producing motion or a change in motion is called a(n) ______________
Fill in the blank(s) with correct word
A ______________ has a definite volume and assumes the shape of its container
Fill in the blank(s) with correct word