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Brilliant_brown [7]

4 years ago

9

Describe the patterns created by minerals in foliated rock.

1 answer:

professor190 [17]4 years ago

3 0

Foliated Metamorphic Rocks. Foliated metamorphic rocks are formed within the Earth's interior under extremely high pressures that are unequal, occurring when the pressure is greater in one direction than in the others (directed pressure). ... This reduces the overall pressure on the rock and gives it a stripped look.

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The color of an object we see is determined by the

aksik [14]

Answer:

An object appears white when it reflects all wavelengths and black when it absorbs them all. Red, green and blue are the additive primary colors of the color spectrum. Combining balanced amounts of red, green and blue lights also produces pure white.

Explanation:

7 0

3 years ago

What do you mean by force?

salantis [7]

It’s to push an object in it’s direction of where it’s leading to.

3 0

3 years ago

An object moving due to gravity can be described by the motion equation y=y0+v0t−12gt2, where t is time, y is the height at tha

LenaWriter [7]

Answer:

$t=6.4534 s$

Explanation:

This is an exercise where you need to use the concepts of <em>free fall objects</em>

Our <u>knowable variables</u> are initial high, initial velocity and the acceleration due to gravity:

$y_{0}=75m$

$v_{oy} =20m/s$

$g=9.8 m/s^{2}$

At the end of the motion, the <u><em>rock hits the ground</em></u> making the final high y=0m

$y=y_{o}+v_{oy}*t-\frac{1}{2}gt^{2}$

If we <em>evaluate the equation</em>:

$0=75m+(20m/s)t-\frac{1}{2}(9.8m/s^{2})t^{2}$

This is a classic form of <u><em>Quadratic Formula</em></u>, we can solve it using:

$t=\frac{-b ± \sqrt{b^{2}-4ac } }{2a}$

$a=-4.9\\b=20\\c=75$

$t=\frac{-(20) + \sqrt{(20)^{2}-4(-4.9)(75) } }{2(-4.9)}=-2.37s$

$t=\frac{-(20) - \sqrt{(20)^{2}-4(-4.9)(75) } }{2(-4.9)}=6.4534s$

Since the <u><em>time can not be negative</em></u>, the <em>reasonable answer</em> is

$t=6.4534s$

8 0

3 years ago

List Two Common Object for Plant Resource

Burka [1]

Cells membrain cellwall glucose for a leaf

7 0

3 years ago

You have learned of two fundamental units that are not vector quantities. Which are they?

Mila [183]

Answer:

Mass and time are not vector quantities .

Explanation:

All the physical quantities can be classified into two major categories that is :

Scalar
Vector

Scalar quantities

They are those that describes only the magnitude and they are regarded as incomplete quantities as they don't provide complete information.

For example : Speed ,Mass, Time etc

Vector quantities

They are complete quantities that can be described in magnitude as well as direction .

For example : Velocity ,gravity ,Acceleration etc

4 0

3 years ago