Which cycle causes earthquake and volcanic activity? carbon water tectonic phosphorus

Physics

2 answers:

Sphinxa [80]3 years ago

8 0

Answer: tectonics

Plate tectonics is the movement of the lithospheric plate over the underlying mantle. It results in the breakage of lithospheric plates into number of plates which floats and travel on the surface of earth's mantle. This occurs due to geological processes like earthquakes and volcanic activity.

erik [133]3 years ago

6 0

The answer would be tectonic. hope this helps (:

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1.)Two objects, one of m=20,000 kg, and another of 12,500 kg, are placed at a distance of 5 meters apart. What is the force of g

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1) $6.67\cdot 10^{-4} N$

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$F=G\frac{m_1 m_2}{r^2}$

where

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m1 = 20,000 kg is the mass of the first object

m2 = 12,500 kg is the mass of the second object

r = 5 m is the distance between the two objects

Substituting the numbers inside the equation, we find

$F=(6.67\cdot 10^{-11})\frac{(20,000 kg)(12,500 kg)}{(5 m)^2}=6.67\cdot 10^{-4} N$

2) $2.7\cdot 10^{-3} N$

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$F \sim \frac{1}{r^2}$

this means that if we cut in a half the distance without changing the masses, the magnitude of the forces changes by a factor

$F'\sim \frac{1}{(r/2)^2}=4 \frac{1}{r^2}=4F$

So, the gravitational force increases by a factor 4. Therefore, the new force will be

$F' = 4 F=4(6.67\cdot 10^{-4} N)=2.7\cdot 10^{-3} N$

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