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3 years ago

Which property is generally the least useful in identifying minerals? color hardness streak cleavage

2 answers:

7 0

The mineral is a dark color, has a dull metallic luster, it is opaque, and has fracture instead of cleavage, a red-brown streak, and a hardness 5.0 to 6.5.

Misha Larkins [42]3 years ago

5 0

Answer: Color

Explanation:

A mineral is an inorganic compound that is extracted beneath the earth crust by the process of mining. Minerals can be distinguished from each other on the basis of their physical and chemical properties.

The color is the physical property of the mineral. Two or more minerals can have the same color. Therefore, color will be considered as a least property in identification of minerals.

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Which of the following processes could have caused this cave to fill with water?

Mars2501 [29]

Your answer would be D. Transpiration

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3 years ago

if you throw a rock straight up at a speed of 19m/s. How long goes it take the ball to reach its maximum height?

Scrat [10]

Answer:

It requires 1.9 seconds to reach maximum height.

Explanation:

As per given question,

Initial velocity (U) =19 m/s

Final velocity (V) = 0 m/s

$\text { Taking acceleration due to gravity }(a)=10 \mathrm{m} / \mathrm{s}^{2}$

Maximum height = S

Time taken is "t"

Calculating time taken to reach maximum height:

We know that time taken to reach the maximum height is calculated by using the formula V = U + at

Substitute the given values in the above equation.

Final velocity is “0” as there is no velocity at the maximum height.

$0=19+10 \times t$

$-19=10 \times t$

$\frac{-19}{10}=t$

t = 1.9 seconds.

The time taken to reach maximum height is 1.9 seconds.

Calculating maximum height:

$\text { Consider the equation } V^{2}-U^{2}=2 a S$

Solving the equation we will get the value of S

$0-19^{2}=2 \times(-10) \times \mathrm{S} .(-\text { is due to opposite of gravity) }$

-361 = -20S

Negative sign cancel both the sides.

$\mathrm{S}=\frac{361}{20}$

S = 18.05 m

Maximum height is 18.05 m .

3 0

3 years ago

Which transformation will map figure L onto figure L'? (1 point) Two congruent triangles Figure L and Figure L prime are drawn o

Ghella [55]

Answer:

Horizontal translation of six units

Explanation:

8 0

3 years ago

Forces cause changes to the motion of objects. Name a force and describe two changes it makes.

otez555 [7]

Sliding and Static.

Would be the right one here.

3 0

4 years ago

Why do dzongs have broader base?

NNADVOKAT [17]

Answer:

The base of taller buildings are made broader because it reduces the pressure exerted on the ground so that they do not sink in due to the extremely high pressure of the building.

Explanation:

hope thiss helpss~!

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3 years ago