A comet has an elliptical orbit around the Sun. Its total orbital energy is
A) greatest when it is farthest from the Sun.
B) greatest when it is closest to the Sun.
C) the same throughout its orbit.
C) the same throughout its orbit.
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The slope of a distance vs. time graph is the __________
Fill in the blank(s) with correct word
When a ferromagnetic material that has been magnetized is brought to a temperature greater than the Curie temperature, what happens to its residual magnetism
a. Nothing happens to the residual magnetism. b. The residual magnetism disappears. c. The residual magnetism reaches it's highest value. d. All the magnetic domains causing magnetism become a single domain. e. The material of the magnet melts causing currents that are magnetic.
The most common mineral in Earth's crust is ________, and the second most common mineral is ________
A) quartz; feldspar B) feldspar; quartz C) silicate; carbonate D) olivine; feldspar
Which of the following unit equations is true?
A. N·C = V/m B. N·m = V·C C. N·V = N·m D. N/m = V/C E. N/V = m/C