This video explains how to determine which coin out of 6 identical coins is light using only 2 weighings on a balance scale.

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light

# Determine A Light Coin Among Six Identical Coins In Two Weighings

# Ex 2: Related Rates Problem — Rate of Change of a Shadow from a Light Pole

# Ex: Related Rates Problem – Rate of Change of a Shadow from a Light Pole

This video explains how to determine the rate of change of a shadow from a person walking away from a street light.

This video explains how to determine which coin out of 6 identical coins is light using only 2 weighings on a balance scale.

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This video explains how to determine the rate of change of a shadow from a person walking away from a street light.