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Nataly_w [17]
3 years ago
7

True or false air contains 78 percent hydrogen, 21 percent oxygen, and 0.03 percent carbon dioxide

Physics
1 answer:
LiRa [457]3 years ago
3 0
The answer you are looking for is false
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A 2kg book is held against a vertical wall. The coefficient of friction is 0.45. What is the minimum force that must be applied
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We have that for the Question "A 2kg book is held against a vertical wall. The <em>coefficient </em>of friction is 0.45. What is the minimum force that must be applied on the <em>book</em>, perpendicular to the wall, to prevent the book from slipping down the wal" it can be said that  the minimum force that must be applied on the <em>book is</em>

  • F=44N

From the question we are told

A 2kg book is held against a vertical wall. The <em>coefficient </em>of friction is 0.45. What is the minimum force that must be applied on the <em>book</em>, perpendicular to the wall, to prevent the book from slipping down the wal

Generally the equation for the  Force  is mathematically given as

F=\frac{mg}{\mu}\\\\F=\frac{2*9.8}{0.45}\\\\

F=44N

Therefore

the minimum force that must be applied on the <em>book is</em>

F=44N

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