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tiny-mole [99]
3 years ago
11

(science) Just checking meh answer will mark brainliest

Physics
2 answers:
Katen [24]3 years ago
8 0

Answer:

D. Plate movement

Explanation:

Since they cause earthquakes...

Finger [1]3 years ago
3 0
Plate movement also known as tectonic plates
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115 divided by 2 equals 57.5
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You could use an elevator or the stairs to lift a box to tenth floor.which has greater power?
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7 0
3 years ago
A 25kg chair initially at rest on a horizontal floor requires a 165 N horizontal force to set it in motion. Once the chair is in
SCORPION-xisa [38]

Answer:

\mu_k=0.51  

Explanation:

Given that

Mass , m = 25 kg

We know that when body is in rest condition then static friction force act on the body and when body is in motion the kinetic friction force act on the body .That is why these two forces are given as follows

Static friction force ,fs= 165 N

Kinetic friction force ,fk = 127 N

If the body is moving with constant velocity ,it means that acceleration of that body is zero and all the forces are balanced.

Lets take coefficient of kinetic friction  = μk

The kinetic friction is given as follows

fk = μk  m g

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127 = μk x 25 x 9.81

\mu_k=\dfrac{127}{25\times 9.81}

\mu_k=0.51

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3 years ago
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