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lisov135 [29]
3 years ago
5

The rate at which the earth's surface loses heat and keeps earth temperature at which living things can survive

Physics
1 answer:
agasfer [191]3 years ago
5 0
<span>I believe it's insulation.</span>
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A 22.0 kg child slides down a slide that makes a 37.0° angle with the horizontal. (a) What is the magnitude of the normal force
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Answer:

(a) 172.185 N

(b) 53^{\circ}

Solution:

As per the question:

Mass of the child, m = 22.0 kg

Angle, \theta = 37.0^{\circ}

Now,

(a) The magnitude of the normal force exerted by the slide on the child:

F_{N} = mgcos\theta

F_{N} = 22\times 9.8cos37^{\circ} = 172.185\ N

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90^{\circ} - 37^{\circ} = 53^{\circ}

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