The mass of an object determines the object's inertia.
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.
Answer:
D) 30°
Explanation:
This is in accordance to the Gauss Law which states that, <em>the electric flux through any closed surface is equal to the total charge enclosed by the surface divided by the permittivity of free space.</em>
Mathematically given as:
where
θ = the angle between the electric field lines and area vector normal to the surface.
When the area vector has formed an angle of 60° then the plane is at 30° and we know <em>cos 60° = 0.5</em>
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Answer:
It is located at a distance of 5.94 light years from Earth.
Explanation:
Since light transmitted from the star takes approximately 5.94 years to reach the earth, it means the star is located at a distance of 5.94 light years from Earth.
