Resistance and Resistivity (1) Physics AS Level
Cambridge
AS & A Level
Physics (9702)
فروردین
2010
شامل مباحث:
Chapter 10: Resistance and resistivity
تعداد سوالات: 15
سطح دشواری:
متوسط
شروع:
آزاد
پایان:
آزاد
مدت پاسخگویی:
20 دقیقه
پیش نمایش صفحه اول فایل
omer uner A composite rod is made by attaching a glass-reinforced plastic rod and a nylon rod end to end, as shown.
The rods have the same cross-sectional area and each rod is 1.00 m in length. The Young modulus ${E_p}$ of the plastic is 40GPa and the Young modulus ${E_n}$ of the nylon is 2.0GPa.
The composite rod will break when its total extension reaches 3.0 mm.
What is the greatest tensile stress that can be applied to the composite rod before it breaks?
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