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Which of the following explains why a bicycle uses a gear? a. The gear increases the effort force needed. b. The gear increases resistance force. c. The gear decreases effort force. d. The gear decreases resistance force.
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Asked 1/31/2013 1:37:17 PM
Updated 3/13/2016 7:21:43 PM
2 Answers/Comments
This answer has been confirmed as correct and helpful.
Edited by Andrew. [3/13/2016 7:21:40 PM], Confirmed by Andrew. [3/13/2016 7:21:43 PM]
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Original conversation
User: A bicycle is a compound machine. True False

User: A lawn mower is an example of a compound machine. True False

User: Which of the following explains why a bicycle uses a gear? a. The gear increases the effort force needed. b. The gear increases resistance force. c. The gear decreases effort force. d. The gear decreases resistance force.

Weegy: The following explains why a bicycle uses a gear: The gear decreases effort force.
Expert answered|MrG|Points 2639|

Question
Asked 1/31/2013 1:37:17 PM
Updated 3/13/2016 7:21:43 PM
2 Answers/Comments
This answer has been confirmed as correct and helpful.
Edited by Andrew. [3/13/2016 7:21:40 PM], Confirmed by Andrew. [3/13/2016 7:21:43 PM]
New answers
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3
A bicycle is a compound machine. TRUE.

Added 3/13/2016 12:59:00 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [3/13/2016 7:22:02 PM]
3
A lawn mower is an example of a compound machine. TRUE.

Added 3/13/2016 12:59:03 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [3/13/2016 7:22:18 PM]
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Questions asked by the same visitor
The mechanical advantage of a compound machine is related to the mechanical advantage of all the simple machines involved. True False
Weegy: TRUE. The mechanical advantage of a compound machine is related to the mechanical advantage of all the simple machines involved. (More)
Question
Expert Answered
Asked 1/31/2013 1:29:28 PM
0 Answers/Comments
The elbow is an example of a simple machine in the human body. True False
Weegy: The answer is True. The elbow is an example of a simple machine in the human body. (More)
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Expert Answered
Asked 1/31/2013 2:07:49 PM
0 Answers/Comments
The ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2. True False
Question
Updated 7/13/2018 12:07:30 PM
1 Answer/Comment
The ordered pair (-1, -1) is a solution of the system -4x + 2y = 2 and x + y = -2. TRUE.

-4x + 2y = 2 ;
y = -x - 2 ;

-4x + 2(-x - 2) = 2 ;
-4x - 2x - 4 = 2 ;
-6x - 4 = 2 ;
-6x = 2 + 4 ;
-6x = 6 ;
x = 6/-6 ;
x = -1 ;

y = -(-1) - 2 ;
y = 1 - 2 ;
y = -1 ;

Solution set: x = -1, y = -1
Added 7/13/2018 12:07:30 PM
This answer has been confirmed as correct and helpful.
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