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ArbitrLikvidat [17]
3 years ago
6

volcanoes can form along all of the following except a) transform boundaries b) hot spots c) convergent boundaries d) divergent

boundaries
Physics
2 answers:
Nikitich [7]3 years ago
7 0

Answer: Option (A)

Explanation: Volcanoes are formed when two plates collides with one another, and when the denser plate getting subducted below the lighter plate, the crust undergoes partial melting, as a result of which the magma forces towards the surface and thereby forms volcanoes. Also along the hotspot regions, volcanoes are formed because of the intruding magma.

But in case of transform plate boundary, the plates are neither destructed nor created. So, the plates remains conserved. Due to this, there occurs no partial melting of the crust and so no volcanoes.

Thus, the correct answer is option (A).

elena-14-01-66 [18.8K]3 years ago
4 0
A.) Transform Boundaries
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PLEASE HURRY
Sophie [7]

Decompose the forces acting on the block into components that are parallel and perpendicular to the ramp. (See attached free body diagram. Forces are not drawn to scale)

• The net force in the parallel direction is

∑ <em>F</em> (para) = -<em>mg</em> sin(21°) - <em>f</em> = <em>ma</em>

• The net force in the perpendicular direction is

∑ <em>F</em> (perp) = <em>n</em> - <em>mg</em> cos(21°) = 0

Solving the second equation for <em>n</em> gives

<em>n</em> = <em>mg</em> cos(21°)

<em>n</em> = (0.200 kg) (9.80 m/s²) cos(21°)

<em>n</em> ≈ 1.83 N

Then the magnitude of friction is

<em>f</em> = <em>µn</em>

<em>f</em> = 0.25 (1.83 N)

<em>f</em> ≈ 0.457 N

Solve for the acceleration <em>a</em> :

-<em>mg</em> sin(21°) - <em>f</em> = <em>ma</em>

<em>a</em> = (-0.457N - (0.200 kg) (9.80 m/s²) sin(21°))/(0.200 kg)

<em>a</em> ≈ -5.80 m/s²

so the block is decelerating with magnitude

<em>a</em> = 5.80 m/s²

down the ramp.

5 0
2 years ago
A 81 kg block is released at a 3.8 m height. the track is frictionless. the block travels down the track, hits a massless spring
Alenkinab [10]
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Explanation:

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