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Which of the following statements about planetary motion is false? A. Each planet would move in a straight line without the Sun's gravitational pull. B. Each planet has a period of revolution
and a period of rotation. C. Each planet moves in a circular orbit around the Sun. D. A planet's speed changes as it orbits the Sun.
The FALSE statement about Planetary Motion is: Each planet would move in a straight line without the Sun's gravitational pull. ***The sun's gravitational force is very strong. [ If it were not, a planet would move in a straight line out into space forever. The sun's gravity pulls the planet toward the sun, which changes the straight line of direction into a curve. This keeps the planet moving
in an orbit around the sun. ]
Expert answered|emdjay23|Points 2470|
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Asked 10/9/2013 11:42:03 AM
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Which one of the following SI base units is not matched to the correct unit of measurement? A. Mass: kg B. Temperature: K C. Time: s D. Length: km
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Updated 7/29/2015 6:27:21 AM
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Length: km is an SI base unit not matched to the correct unit of measurement.
Added 7/29/2015 6:27:21 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by Andrew. [7/29/2015 7:00:06 AM]
Which of the following statements about metallic bonds is false? A. The resulting compound is a good conductor of electricity. B. The resulting compound has low melting and boiling points. C. The resulting compound has a shiny surface. D. The resulting compound cannot be dissolved in water.
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Updated 178 days ago|9/26/2016 5:50:00 AM
1 Answer/Comment
If an atom contains 12 protons and 10 neutrons, its mass number is 12 + 10 = 22.
Added 178 days ago|9/26/2016 5:48:39 AM
This answer has been confirmed as correct, not copied, and helpful.
If an atom contains 12 protons and 10 neutrons, what's its mass number? A. 22 B. 10 C. 12 D. 2
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Expert Answered
Updated 178 days ago|9/26/2016 5:51:31 AM
1 Answer/Comment
Fire emits the most radiation.

Added 8/3/2014 4:40:14 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by selymi [9/1/2014 6:17:34 AM]
Which object emits the most radiation? A. Ice B. Water C. Dirt D. Fire
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Asked 10/5/2013 11:56:32 PM
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The number of valence electrons in an atom can often be quickly determined by referencing A. the atomic number of the element. B. the period number on the periodic table. C. the group number on the periodic table. D. the atomic mass of the element.
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