Question and answer
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|
Question
Asked 5/10/2013 10:56:07 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
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
Weegy: A. 15 millimeters User: Which one of the following types of electromagnetic radiation causes certain substances to fluoresce? A. Ultraviolet rays B. Infrared waves C. X rays D. Cosmic rays Weegy: B. Ultraviolet rays are flueoresce User: If you're driving towards the sun late in the afternoon, you can reduce the glare from the road by wearing sunglasses that permit only the passage of light that's A. polarized in a vertical plane. B. polarized in a horizontal plane. C. dispersed in a vertical plane. D. dispersed in a spherical plane. Weegy: If you're driving towards the sun late in the afternoon, you can reduce the glare from the road by wearing sunglasses that permit only the passage of light that's C. polarized in a vertical plane. [ ] User: 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: 72*3=216 User: Which of the following values represents an index of refraction of an actual material? A. 0 B. 1 / 4 C. 1 / 2 D. 5 / 4 Weegy: The answer is D. 5 / 4. (More)
Question
Expert Answered
Asked 5/8/2013 11:45:41 AM
0 Answers/Comments
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)
Question
Expert Answered
Asked 5/8/2013 11:51:54 AM
0 Answers/Comments
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)
Question
Expert Answered
Asked 5/9/2013 1:25:31 PM
0 Answers/Comments
0 questions answered
Popular Conversations
definition of absurdity
12/20/2014 12:13:09 AM| 1 Answers
If your supervisor criticizes the way you handled a certain ...
Weegy: A. clarify how your way of handling it was best. User: You can perform your job well only if you A. ...
12/20/2014 12:00:56 AM| 1 Answers
Personal pronouns take different forms depending on whether they’re ...
Weegy: When we want to show that something belongs to somebody or something, we usually add 's to a singular noun and ...
12/20/2014 12:24:16 AM| 1 Answers
Subjects in sentences refer either to nouns or to A. adverbs. ...
Weegy: An adjective can come before or after a noun or pronoun in a sentence.
12/20/2014 12:23:55 AM| 1 Answers
Weegy Stuff
S
L
P
Points 1116 [Total 4960]| Ratings 0| Comments 1116| Invitations 0|Offline
S
L
Points 730 [Total 1421]| Ratings 1| Comments 720| Invitations 0|Offline
S
1
L
1
L
P
P
L
P
Points 691 [Total 14876]| Ratings 1| Comments 681| Invitations 0|Offline
S
Points 681 [Total 681]| Ratings 1| Comments 671| Invitations 0|Offline
S
P
C
L
P
L
1
Points 117 [Total 6436]| Ratings 1| Comments 107| Invitations 0|Offline
S
L
Points 74 [Total 1534]| Ratings 1| Comments 64| Invitations 0|Online
S
1
L
L
Points 33 [Total 6700]| Ratings 0| Comments 33| Invitations 0|Offline
S
Points 30 [Total 30]| Ratings 0| Comments 0| Invitations 3|Offline
S
Points 23 [Total 29]| Ratings 0| Comments 23| Invitations 0|Offline
S
Points 22 [Total 22]| Ratings 0| Comments 2| Invitations 2|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.