Question and answer
A naturally occurring force related to two bodies in motion is _______ force. A. gravitational B. centrifugal C. centripetal D. frictional
D. frictional
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User: A naturally occurring force related to two bodies in motion is _______ force. A. gravitational B. centrifugal C. centripetal D. frictional

Weegy: D. frictional
sunny4691|Points 670|

User: The model of the universe that suggests that the sun is the center of the universe was first brought by A. Kepler. B. Ptolemy. C. Copernicus. D. Brahe.

Weegy: C. Copernicus.
erildakaci|Points 21|

User: In a practical machine, the power output is _______ the power input. A. larger than B. smaller than C. multiplied by D. equal to

Weegy: In a practical machine, the power output is always smaller than the power input.
clairecalingo|Points 25|

User: What is the kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s? A. 2,940 J B. 12,000 J C. 6,000 J D. 5,880 J

Weegy: The kinetic energy of an object that has a mass of 30 kilograms and moves with a velocity of 20 m/s is C. 6,000 J
Expert answered|vandar|Points 580|

User: How much time should be allowed for a 605-mile car trip if the car will be traveling at an average speed of 55 miles per hour? A. 9 hours B. 11 hours C. 8.75 hours D. 10.5 hours

Weegy: How much time should be allowed for a 605-mile car trip if the car will be traveling at an average speed of 55 miles per hour? B. 11 hours (605 divided by 55)
Expert answered|patmarone|Points 3386|

User: Within the metric system all units are based on the number A. 10. B. 1000. C. 1. D. 100.

Weegy: Metric units are based on the number 10 ... ... Meters and centimeters are units of length in the metric system. A meter is formally defined as 1 ... A B C D E F G H I J ... [ ]
Expert answered|nizzham|Points 0|

User: The ratio of output power to input power, in percent, is called A. work. B. horsepower. C. efficiency. D. conductivity.

Weegy: Asked The ratio to output power to input power and ... of output power to input power in percent is called a ... a conductivity b efficiency c work d horsepower ... [ ]
Expert answered|nizzham|Points 0|

User: When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of about A. 2.5. B. 0.15. C. 1.0. D. 1.3.

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Asked 2/1/2012 11:55:30 AM
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When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of about A. 2.5. B. 0.15. C. 1.0. D. 1.3. User: An object has a mass of 120 kg on the moon. What is the force of gravity acting on the object on the moon? A. 196 N B. 1,176 N C. 12.24 N D. 20 N User: A car with a mass of 1,200 kilograms is moving around a circular curve at a uniform velocity of 20 meters per second. The centripetal ...
Weegy: D. 9.8 User: If the velocity of an object changes from 65 m/s to 98 m/s during a time interval of 12 s, what is the acceleration of the object? A. 2.75 m/s B. 13.58 m/s C. 33 m/s D. 5.42 m/s User: Oil flows upward in the wick of a lantern because of the liquid property called A. density. B. meniscusity. C. viscosity. D. capillarity. Weegy: C. Capillarity User: If an object has a mass of 20 kg, what is the force of gravity acting on it on earth? A. 32.67 N B. 1.96 kg C. 2.04 kg D. 196 N Weegy: If an object has a mass of 20 kg, what is the force of gravity acting on it on earth? C. 196 N User: According to Ptolemy's model of the movement of celestial bodies, A. the earth rotates around the sun. B. the earth rotates around the moon. C. planets orbit in circular paths around the earth. D. the sun is the center of the universe. Weegy: According to Ptolemy's model of the movement of celestial bodies planets orbit in circular paths around the earth. User: The main difference between speed and velocity involves A. gravity. B. direction. C. distance. D. weight. Weegy: C. distance. User: The main difference between the internal combustion engine and the diesel engine is that the diesel engine A. does not have a crankshaft. B. does not utilize pistons. C. has no connecting rods. D. has no ignition system Weegy: B. does not utilize pistons. (More)
Question
Expert Answered
Updated 281 days ago|5/26/2014 8:38:15 PM
1 Answer/Comment
When an automotive battery is fully charged, the sulfuric acid and water mixture will have a specific gravity of about 1.3.

Added 281 days ago|5/26/2014 8:38:15 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by jeifunk [5/26/2014 9:21:12 PM]
Which one of the following substances is a liquid fuel used in rocket engines? A. Potassium perchlorate B. Liquid oxygen C. Ammonia D. Codium nitrate User: Which of the following statements correctly describes the position of the intake and exhaust valves during most of the power stage in a four-cycle gas engine? A. The intake valve is open and the exhaust valve is closed. B. Both the intake valve and the exhaust valve are closed. C. Both the ...
Weegy: Both the intake valve and the exhaust valve are closed. User: Unlike other kinds of liquids, volatile liquids A. evaporate rapidly at a relatively low temperature. B. flow rapidly at a relatively low temperature. C. freeze readily at a relatively high temperature. D. ignite readily at a relatively low temperature. Weegy: Volatile liquids are the liquids that evoporates readily at room temperrature therefore they evoporate rapidly "relatively" at low temperature i.e.answerA. evaporate rapidly at a relatively low temperature. (More)
Question
Expert Answered
Asked 2/1/2012 12:52:54 PM
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The amount of heat energy required to raise the temperature of a unit mass of a material one degree is A. absolute zero. B. a Joule. C. its heat capacity. D. a Btu.
Question
Not Answered
Updated 171 days ago|9/13/2014 6:46:26 PM
1 Answer/Comment
The amount of heat energy required to raise the temperature of a unit mass of a material one degree is its heat capacity.
Added 171 days ago|9/13/2014 6:46:22 PM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by selymi [9/13/2014 11:47:53 PM]
When a tuning fork vibrates over an open pipe and the air in the pipe starts to vibrate, the vibrations in the tube are caused by A. reinforcement. B. beats. C. resonance. D. harmonics.
Question
Updated 2/1/2012 8:44:27 PM
1 Answer/Comment
When a tuning fork vibrates over an open pipe and the air in the pipe starts to vibrate, the vibrations in the tube are caused by resonance.
Added 2/1/2012 8:44:39 PM
This answer has been added to the Weegy Knowledgebase
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