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
19,223,675 questions answered
Popular Conversations
Solve each equation. 7x^2 = 49
Weegy: 7x=49-7 7x=42 x=6 User: Solve each equation. 8x^2 - 24 = 3x^2 - 9 Weegy: 8x + 3 = 7x - 2 8x - 7x = -2 - 3 ...
1/28/2015 7:50:36 AM| 4 Answers
Solve the equation. 6 = 2(x + 8) - 5x User: Solve the ...
Weegy: -6p - 21 = 3p - 12 -6p - 3p = -12 + 21 -9p = 9 p = -1 User: Solve the equation. 0.6(y + 3) = 4.8 User: ...
1/28/2015 11:52:13 AM| 4 Answers
Solve for x. 7(x + 1) = 21 User: Solve for x. 7(x + 1) = 21
Weegy: 4/7=x+3/21 x = 4/7 - 3/21 x = 4/7 - 1/7 x = 3/7 User: Solve for x. 5(x + 1) = 4(x + 8) User: Solve for ...
1/28/2015 7:25:48 AM| 3 Answers
Solve the equation. 2(x + 4) = 30 User: Solve the equation. x/5 + ...
Weegy: p ? 1 = 4 p = 4 + 1 p = 5 User: Write the given sentence as an equation. Tim’s age in 7 years will be three ...
1/28/2015 11:37:11 AM| 3 Answers
The square of a certain negative number is equal to five more than ...
Weegy: x^2 = 0.5x + 5 Quadratic formula gives solutions as: -2 and 2.5, but since x is negative, it's -2. User: ...
1/28/2015 12:03:27 PM| 3 Answers
What kind of complement is the underlined word? Tell me your ...
Weegy: Colorado became a state in 1876. The word state is a predicate nominative. User: Which part of speech is ...
1/28/2015 12:17:13 PM| 3 Answers
What is writ of assistance?
Weegy: Writing is language in a textual medium through the use of a set of signs or symbols (known as a writing ...
1/28/2015 9:22:07 PM| 2 Answers
What is the Declaratory Act?
Weegy: The Declaratory Act was a gesture of British Parliament reasserting its authority to pass laws on the colonies, ...
1/28/2015 9:27:31 PM| 2 Answers
The slope of the line passing through the points (-1, 5) and (3, 5) ...
Weegy: (-1) * 5 = -5 User: what is the slope of the line passing thru (0,4) and (-8,-1) User: What is the slope of ...
1/29/2015 4:21:11 AM| 2 Answers
Weegy Stuff
S
L
Points 2000 [Total 2021]| Ratings 0| Comments 2000| Invitations 0|Offline
S
L
P
L
P
Points 1370 [Total 6647]| Ratings 0| Comments 1370| Invitations 0|Offline
S
1
L
1
L
P
P
L
P
P
Points 670 [Total 15681]| Ratings 0| Comments 670| Invitations 0|Offline
S
L
Points 438 [Total 1119]| Ratings 2| Comments 418| Invitations 0|Offline
S
1
L
L
Points 272 [Total 6972]| Ratings 1| Comments 262| Invitations 0|Offline
S
Points 103 [Total 118]| Ratings 1| Comments 93| Invitations 0|Offline
S
P
C
L
P
L
1
Points 92 [Total 6680]| Ratings 1| Comments 82| Invitations 0|Offline
S
L
Points 83 [Total 1644]| Ratings 0| Comments 83| Invitations 0|Online
S
Points 63 [Total 445]| Ratings 0| Comments 63| Invitations 0|Offline
S
Points 50 [Total 52]| Ratings 0| Comments 0| Invitations 5|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2014 Purple Inc.