عندك أي سؤال عن كليه العلوم أو المواد الدراسيه ....أتفضل أدخل

[شموخ مسلمة]

معلش ياستار هتعبك شوية
بس عندى سؤالين فيزيا مش عارفاهم
او تقدر تقول مش فاهماهم

1-suppose that the three fundamental standards of the metric system were length,density and time rather than length,mass and time . the standard of density in this system is to be defined as that of water . what consideration about water would you need to address to make sure that the standard of density is as accurate as possible

2- A sidewalk is to be constructed around a swimming pool that measures (10.0+/-0.1) m by (17.0 +/-0.1)m . if the sidewalk is to measure (1.00+/-0.01)m wide by (9.0+/-0.1)cm thick ,what volume of concrete is needed , and what is the approximate uncertainty of this volume?

معلش يا ستار تاعباك
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[***star***]

المشاركة الأصلية كتبت بواسطة أرق ملاك

معلش ياستار هتعبك شوية

بس عندى سؤالين فيزيا مش عارفاهم
او تقدر تقول مش فاهماهم

1-suppose that the three fundamental standards of the metric system were length,density and time rather than length,mass and time . The standard of density in this system is to be defined as that of water . What consideration about water would you need to address to make sure that the standard of density is as accurate as possible

2- a sidewalk is to be constructed around a swimming pool that measures (10.0+/-0.1) m by (17.0 +/-0.1)m . If the sidewalk is to measure (1.00+/-0.01)m wide by (9.0+/-0.1)cm thick ,what volume of concrete is needed , and what is the approximate uncertainty of this volume?

معلش يا ستار تاعباك

ربنا يوفقك

حرام عليكي ..... ايه ده....والله ماعرفهم....والأولي دي كمان اللي عايز يحط الكثافه بدل الكتله في النظام المتري...تبقي اسالي فيهم الدوك ....معلش ياارق ملاك مش هقدر اجاوبهملك

[شموخ مسلمة]

المشاركة الأصلية كتبت بواسطة ***star***

حرام عليكي ..... ايه ده....والله ماعرفهم....والأولي دي كمان اللي عايز يحط الكثافه بدل الكتله في النظام المتري...تبقي اسالي فيهم الدوك ....معلش ياارق ملاك مش هقدر اجاوبهملك

و لا يهمك يا ستار
اصل ده بقى رئيس قسم الفيزيا و ماشاء الله عليه و ع مسائله
ع فكرة انا اصلا وديت الشيت النهاردة

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