If the net work done on an object is positive, then the object's kinetic energy
A) decreases.
B) remains the same.
C) increases.
D) is zero.
E) cannot be determined without knowing the object's mass.
C
Physics & Space Science
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The solubility parameter of a polymer is related to the energy of _____________for the polymer.
Fill in the blank(s) with the appropriate word(s).
Physics & Space Science
Which of the following planets' average density is closest to that of Earth?
A) Mercury B) Mars C) Venus D) Neptune
Physics & Space Science
What observational evidence do we have that black holes exist?
What will be an ideal response?
Physics & Space Science
Mercury's magnetic field is thought to be due to:
A) dynamo action, like the Earth's magnetic field. B) a mechanism entirely unique to Mercury. C) being close to the Sun. D) being a fossil remnant dating back to the distant past when the core was more liquid.
Physics & Space Science