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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.
D. A planet's speed changes as it orbits the Sun.
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User: 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.

Weegy: D. A planet's speed changes as it orbits the Sun.
Expert answered|imnamra|Points 10|

User: Which of the following is not part of the Big Bang theory? A. Gravity pulled stars into galaxies. B. As the universe expands, galaxies move toward one another. C. In the beginning the universe was too hot for atoms to exist. D. The universe is continuously expanding.

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Asked 10/9/2013 11:47:31 AM
Updated 10/9/2013 8:18:46 PM
1 Answer/Comment
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To add credibility to your answer, always provide a link, if available, to a source that confirms its accuracy.

Please take some time to review the rules.
Added 10/9/2013 8:18:46 PM
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Questions asked by the same visitor
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
Question
Not Answered
Updated 7/29/2015 6:27:21 AM
1 Answer/Comment
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.
Weegy: The false statement is: The resulting compound has low melting and boiling points. Metals often have high boiling points, with tungsten (5828 K) being extremely high. User: If the thermometer reads 20° Celsius, what's the temperature in Fahrenheit? A. 68° B. 72° C. 52° D. 36° Weegy: °C x 9/5 + 32 = °F. 20°C x 9/5 +32 =68°F User: If an atom contains 12 protons and 10 neutrons, what's its mass number? A. 22 B. 10 C. 12 D. 2 (More)
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Expert Answered
Updated 148 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 148 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
Weegy: If an atom contains 12 protons and 10 neutrons, its mass number is: 22. Mass number = Number of protons + Number of neutrons. 12 +10 = 22 User: Which object emits the most radiation? A. Ice B. Water C. Dirt D. Fire (More)
Question
Expert Answered
Updated 148 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
Weegy: Fire emits the most radiation. [ ] User: Which of the following is not a part of kinetic molecular theory? A. When particles collide, no energy is lost. B. When temperature is increased, particles move more quickly. C. Small particles make up all matter. D. Particles are in constant, random motion. Weegy: C. Small particles make up all matter (More)
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Expert Answered
Asked 10/5/2013 11:56:32 PM
0 Answers/Comments
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.
Weegy: The number of valence electrons in an atom can often be quickly determined by referencing C. [ the group number on the periodic table. The number of valence electrons of an element can be determined by the periodic table group (vertical column) in which the element is categorized. With the exception of groups 3–12 (the transition metals), the number within the unit's place identifies how many valence electrons may be associated with a neutral atom of an element listed under that particular column. ] User: Which of the following men did not help to advance the understanding of the atom? A. Rutherford B. Dalton C. Democritus D. Aristotle Weegy: D. Aristotle did not help to advance the understanding of the atom. User: What's the final volume of a gas with an initial volume of 75 mL if the pressure decreases from 300 mL to 200 mL? A. 112.5 mL B. 50.0 mL C. 100.0 mL D. 75.5 mL (More)
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Expert Answered
Asked 10/6/2013 12:09:48 AM
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