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
A rigid circular disc of radius r has its centre at X. A number of forces of equal magnitude F act at the edge of the disc. All the forces are in the plane of the disc.
Which arrangement of forces provides a moment of magnitude 2Fr about X?