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faltersainse [42]
2 years ago
14

Calculate the efficiency of given pulley System if 40N

Physics
1 answer:
jonny [76]2 years ago
4 0

Answer:

20n

Explanation:

60n - 40n = efficiency of pulley system

20n = efficiency of pulley system

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Paraphin [41]

Answer:

 c = 5 m

Explanation:

this exercise you want to divide the rectangular room into two triangular rooms

                 

the area of ​​triangles is

           A = ½ base height

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the length of the curtain can be found using the Pythagorean theorem

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5 0
3 years ago
Please help, it's grade 7 science. :)
xeze [42]

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4 0
2 years ago
Read 2 more answers
A 1.5m wire carries a 7 A current when a potential difference of 68 V is applied. What is the resistance of the wire?
PSYCHO15rus [73]

Working...

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3 0
3 years ago
A survey in a magazine that asks readers to return the survey would result in:
Angelina_Jolie [31]
D - Most likely. Those who read the magazine can choose whether or not to return the survey.
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3 years ago
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