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kotegsom [21]
3 years ago
10

What are some human causes for global warming?

Physics
1 answer:
geniusboy [140]3 years ago
7 0

Answer: At present, humans are putting an estimated 9.5 billion metric tons of carbon into the atmosphere each year by burning fossil fuels, and another 1.5 billion through deforestation and other land cover changes

Explanation:

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List two diseases of the muscular system.
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muscular dystrophy and  myasthenia gravis

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Give a specific example of a vector quantity. why this type of quantity would be used to describe this event ?
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3 years ago
The Force of friction between an object and the surface upon which it is sliding is 12N. The weight of the object is 20N. What i
shtirl [24]

Answer: The coefficient of kinetic friction is μ = 0.6

Explanation:

For an object of mass M, the weight is:

W = M*g

where g is the gravitational acceleration: g = 9.8m/s^2

And the friction force between this object and the surface can be written as:

F = W*μ

where μ is the coefficient of friction (kinetic if the object is moving, and static if the object is not moving, usually the static coefficient is larger)

In this case, the weight is:

W = 20N

And the friction force is:

F = 12N

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12N = 20N*μ

(12N/20N) = μ = 0.6

The coefficient of kinetic friction is μ = 0.6

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3 years ago
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yanalaym [24]

Answer:

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Can someone please help me with these. I don't understand any of it.
ValentinkaMS [17]
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