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Date: 19-9-2020
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Date: 19-9-2020
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Date: 19-9-2020
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GAS DENSITY
The density of a gas can be defined in three ways, exactly after the fashion of liquids. Mass density is defined in terms of the number of kilograms per meter cubed (kg/m3) that a sample of gas has. The weight density is defined in newtons per meter cubed (N/m3) and is equal to the mass density multiplied by the acceleration in meters per second squared (m/s2) to which the sample is subjected. The particle density is defined as the number of moles of atoms per meter cubed (mol/m3) in a parcel or sample of gas, where 1 mol ≈ 6.02 × 1023.
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هل يمكن للدماغ البشري التنبؤ بالمستقبل أثناء النوم؟
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علماء: طول الأيام على الأرض يزداد بسبب النواة الداخلية
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دراسة علمية لباحثين في جامعة تكريت تناقش دور المرجعية الدينية في تعزيز خطاب الاعتدال
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