小雪 發問於 科學及數學數學 · 1 十年前

科學小問題(量度)急急急急急急!!!!!

1. How do you measure the thickness of a sheet of paper??

2.How do you measure the diameter of a thin wire?

請以英文和長答案回答!!十分十分感謝!!

更新:

要說出做法;例如用什麼和怎樣量度.

1 個解答

評分
  • 阿一
    Lv 7
    1 十年前
    最愛解答

    1. Measure the thickness of 10000 papers, then divide the thickness by 10000 to get the thickness of 1 paper

    2. Hold 10000 thin wires to make it like a "cylinder", measure the area of the cross-section of this cylinder, divide it by 10000 to get the area of 1, divide it by pi and take its square root to get the radius, multiply it by 2 to get the diameter

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