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What is the value of a 1999 liberty nickel?

The Denver mint did not issue any nickels in 1906, only Philadelphia did. A 1906 Philadelphia nickel retails at $3 to $25 depending on condition.


Why does the sameside of the moon always face earth?

This is due to a phenomenon called synchronous rotation, where the moon rotates on its axis at the same rate it orbits the Earth. This causes one side of the moon to always face towards the Earth.


Nickel and copper lie next to each other on the periodic table how do their structures differ?

Nickel is 3d8 4s2, while copper is 3d10 4s1. If I remember this copper exception to filling its d shell in order correctly the reason is balance in pairs of electrons as the d shell is filled across the row. Chromium is also an exception in this row. ( do not quote me on this, but ask a chemist )


What turns the nacelle at the wind vane and acirc and 128 and 153s indication of wind direction?

The nacelle at the wind vane is typically turned by a yaw motor, which is controlled by a wind turbine controller. The wind vane measures the direction of the oncoming wind and communicates this information to the yaw motor, which then adjusts the nacelle position to face directly into the wind for optimal energy production. The notation "â" is often used in ASCII encoding and represents a specific character in this context, but "128" and "153" do not directly relate to wind direction indication.


How has mining affected the environment in Sudbury?

Mining in Sudbury has had significant environmental impacts, including deforestation, water pollution, and soil contamination from the release of heavy metals like nickel and sulfur compounds. Efforts have been made to mitigate these effects through reclamation projects and improved mining practices, but the region continues to face challenges in restoring its natural ecosystems.