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mestny [16]
2 years ago
11

Identify two potential improvements to the opal extraction process and explain how these improvements could minimize harm to the

environment.
Physics
1 answer:
Orlov [11]2 years ago
7 0

Answer

• Improving the environmental performances

• Developing Green Mining technology

Explanation

The effect to the environment caused by opal mining are; impact on soils and geology, clearing of native vegetation disrupting flora and fauna, change in land use and effects of air quality.

Opal mining is currently examining environmental impacts and adopting measures that mitigate the impacts making the process less destructive to the environment.

With the current commitment to sustainability, opal companies are investing funds for Green Mining as a positive way to impact the environment before and after mining.


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sashaice [31]

Answer:

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AccelerTion: theres a change in velocity since the direction changes

Direction: changed over time

Displacement : difference between 1st and final position

Explanation:

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vector A makes equal angles with x,y and z axis. value of its components (in terms of magnitude of vector A will be?
kiruha [24]
X^2+y^2+z^2=A^2
But here XY and Z are all equal so
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: The truck is to be towed using two ropes. Determine the magnitudes of forces FA and FB acting on each rope in order to develop
Sholpan [36]

Answer:

Fa=774 N

Fb=346 N

Explanation:

We will solve this problem by equating forces on each axis.

  1. On x-axis let forces in positive x-direction be positive and forces in negative x-direction be negative
  2. On y-axis let forces in positive y-direction be positive and forces in negative y-direction be negative

While towing we know that car is mot moving in y-direction so net force in y-axis must be zero

⇒∑Fy=0

⇒Fa*sin(50)-Fb*sin(20)=0

⇒Fa*sin(50)=Fb*sin(20)

⇒Fa=2.24Fb

Given that resultant force on car is 950N in positive x-direction

⇒∑Fx=950  

⇒Fa*cos(20)+Fb*cos(50)=950

⇒2.24*Fb*cos(20)+Fb(50)=950

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⇒Fa=2.24*Fb

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Therefore approximately, Fa=774 N and Fb=346 N

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Fm=Fe and am>ae
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Margarita [4]

An oven mitt is used to take the tray out of the oven because it’s an insulator.

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