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Which of the following employs the use of an external combustion engine? steam boat coal-fired locomotive nuclear power plant all of the above
Weegy: coal-fired locomotive employs the use of an external combustion engine. User: Which of the following does not use an internal combustion engine? a cannon a lawnmower a windmill a car User: An engine is any machine that can _____. convert an energy input to mechanical energy output convert an energy input to chemical energy output convert an energy input to heat energy output convert an energy input to nuclear energy output User: The laws of thermodynamics state that, in a heat engine, _____. energy flows from a cold source to a warm target all the heat energy from a source cannot be converted to mechanical energy all the heat energy from a source must be converted to mechanical energy entropy cannot change during heat flow User: Select the statement that best justifies the conclusion based on the given information. If x + 5 = 15, then x = 10. addition property of equality subtraction property of equality multiplication property of equality substitution Weegy: The right answer is addition property of equality. User: Select the statement that best justifies the conclusion based on the given information. Definition of bisector. Definition of midpoint. If two lines intersect, then their intersection is exactly one point. Through any two different points, exactly one line exists. Weegy: Will you please specify the statement so we can accurately answer the question. (More)
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Expert Answered
Asked 11/15/2012 7:50:20 AM
0 Answers/Comments
A symbol represents both itself and something else. True False
Question
Updated 6/2/2014 2:14:34 PM
1 Answer/Comment
TRUE. A symbol represents both itself and something else.
Added 6/2/2014 2:14:34 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by yumdrea [6/2/2014 2:15:11 PM]
Prehistory includes the time prior to the use of written records. True False
Question
Updated 356 days ago|1/28/2016 12:40:13 PM
1 Answer/Comment
Prehistory includes the time prior to the use of written records. TRUE.
Added 356 days ago|1/28/2016 12:32:00 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by jeifunk [1/28/2016 12:40:14 PM]
During the Paleolithic Age, humans learned to _____. farm make tools domesticate animals swim
Question
Updated 10 days ago|1/8/2017 6:14:39 PM
1 Answer/Comment
During the Paleolithic Age, humans learned to make tools.

Added 10 days ago|1/8/2017 6:14:39 PM
This answer has been added to the Weegy Knowledgebase
Which of the following reduces energy loss due to conduction, convection, and radiation? thermos bottle fiberglass insulation plastic handle on a cooking pot foam insulation
Weegy: The answer is A.thermos bottle . thermos bottle reduces energy loss due to conduction, convection, and radiation. User: Fuel is combusted in the _____ stroke of a four-stroke engine. intake compression power exhaust Question #3TextMultipleChoice Score: If the internal energy of a system increases but there is no change in temperature, then the system's potentialkinetic energy is increasing. Question #4Matching Score: Match the following terms with the correct examples. 1. conduction a spoon resting in a cup of tea gets hot 2. convection the Sun warming the Earth 3. radiation water warming on a stove Question #5MultipleChoice Score: Which of the following is an example of an internal combustion engine? cannonsteam boatsteam locomotivecatapult Question #6TrueFalse Score: If two substances with the same mass absorb the same amount of energy, the one with the higher specific heat capacity will increase its temperature more than the substance with a lower specific heat capacity. TrueFalse Question #7MultipleSelect Score: Select all that apply. Which of the following can supply the energy for modern home heating systems? electricitybiomasssolargeothermal Question #8MultipleChoice Score: The component of a refrigerator or air conditioner that absorbs and releases heat energy is the _____. compressorexpansion valvecondenserrefrigerant Weegy: Please ask one question at a time. User: Which of the following is an example of an internal combustion engine? cannon steam boat steam locomotive catapult Question #6TrueFalse Score: If two substances with the same mass absorb the same amount of energy, the one with the higher specific heat capacity will increase its temperature more than the substance with a lower specific heat capacity. TrueFalse Question #7MultipleSelect Score: Select all that apply. Which of the following can supply the energy for modern home heating systems? electricitybiomasssolargeothermal Question ... (More)
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Expert Answered
Asked 11/16/2012 7:53:27 AM
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3r = 10 + 5s, when r = 10?
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Solve for x. 7(x - 3) + 3(4 - x) = -8
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