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3 years ago

15

When lava cools, which type of rock forms?

1 answer:

finlep [7]3 years ago

8 0

Igneous rocks<span> are </span>formed<span> from </span>lava<span> or magma. Magma is molten </span>rock<span>that is underground and </span>lava<span> is molten </span>rock<span> that erupts out on the surface. The two main </span>types<span> of igneous </span>rocks<span> are plutonic </span>rocks<span> and volcanic </span>rocks<span>. Plutonic </span>rocks<span> are </span>formed<span> when magma </span>cools<span> and solidifies underground</span>

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3 years ago

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4 years ago

A 60.0 kg person walks from the ground to the roof of a 74.8 m tall building.how much potential energy doed the person have at t

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3 years ago

A uniform 1.6-kg rod that is 0.89 m long is suspended at rest from the ceiling by two springs, one at each end. Both springs han

artcher [175]

Answer:

8.27°

Explanation:

To angle difference will be determined by the difference in the displacement of the springs, produced by the weight of the center of mass of the rod.

$d=y_1-y_2=\frac{F_1}{k_1}-\frac{F_2}{k_2}=\frac{0.5mg}{31N/m}-\frac{0.5mg}{63N/m}\\\\d=0.5(1.6kg)(9.8m/s^2)[\frac{1}{31N/m}-\frac{1}{63N/m}]=0.128m$

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3 years ago