The same object in different inertial reference systems:
a. will always have the same kinetic energy, regardless of the reference system.
b. can have different amounts of kinetic energy viewed from each inertial reference system.
c. cannot be studied from two different reference systems.
d. can have different amounts of gravitational potential energy in different reference systems, but will always have the same amount of kinetic energy.
e. sometimes conserves energy and sometimes does not, depending on inertial reference system.
b
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The Sun is at the vernal equinox within one or two days of which of the following dates?
a. March 21 b. September 22 c. December 22 d. June 21
A +4.0-?C charge is placed on the x axis at x = +3.0 m, and a ?2.0-?C charge is located on the y axis at y = ?1.0 m. Point A is on the y axis at y = +4.0 m. Determine the electric potential at point A (relative to zero at the origin)
a. 6.0 kV b. 8.4 kV c. 9.6 kV d. 4.8 kV e. 3.6 kV
Two wave pulses pass each other on a string. The one traveling toward the right has a positive amplitude, while the one traveling toward the left has an equal amplitude in the negative direction
At the point that they occupy the same region of space at the same time A) constructive interference occurs. B) destructive interference occurs. C) a standing wave is produced. D) a traveling wave is produced. E) a wave pulse is produced.
How big is the nucleus of an atom?
a. about 1% of the volume of the whole atom b. about a millionth of the volume of the whole atom c. about a billionth of the volume of the whole atom d. about a trillionth of the volume of the whole atom