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How much heat energy is required to raise the temperature of 5 kilograms of coal from 20°C to 220°C? A. 314 J B. 6,573 J C. 1,314,718 J D. 4,187,000 J
1,314,718 J is required to raise the temperature of 5 kilograms of coal from 20°C to 220°C.
Expert answered|jeifunk|Points 9661|
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Asked 5/10/2013 10:56:07 AM
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An object 5 millimeters high is located 15 millimeters in front of a plane mirror. How far from the mirror is the image located? A. 5.0 millimeters B. 7.5 millimeters C. 15 millimeters D. 30 millimeters
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Asked 5/8/2013 11:45:41 AM
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If a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is A. 8 lux. B. 24 lux. C. 216 lux. D. 648 lux
Weegy: f a 72-candela light source is located at a distance of 3 meters from a surface, the illuminance on the surface is 216 lux. (More)
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Asked 5/8/2013 11:51:54 AM
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an object has a mass of 180 kg on the moon. what is the force of gravity acting on the object on the moo? A. 1764 N B. 294 N C. 10584 N D. 684 N
Weegy: To determine the force of gravity acting on an object, take the mass of the object times the moon's gravity: 180kg x 1.63 m/s^2 = 293.4 This can be rounded to B. 294 N (More)
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Asked 5/9/2013 1:25:31 PM
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