Uranus' orbital period is 84 years. How far is Uranus from the sun?
What will be an ideal response?
19 AU
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At a particular instant, a proton moves Eastward in a uniform magnetic field that is directed straight downward. The magnetic force that acts on it is
A) to the South. B) zero. C) directed upward. D) Northward. E) Westward.
An object moves along the x axis, with its position given by the function x(t) = ½ t3 . Which of the following can be obtained from a graph of x vs. t?
a. The velocity of the object at any instant in time b. The displacement of the object during a specified time interval c. The speed of the particle at any instant in time d. The average velocity of the object during as specified time interval e. All of the above
A saturated hydrocarbon contains only ______________ bonds, and its hydrogen content is at a maximum
Fill in the blank(s) with correct word
Dew on the grass results from
1) fast-moving molecules. 2) evaporation. 3) open-structured water crystals. 4) the pressure of the atmosphere on water vapor. 5) the slowing down of fast-moving water molecules. As dew forms on the grass, energy is 6) given to the grass by the water vapor. 7) given up by the grass to the water vapor.