4. Three identical springs A, B and C of negligible weight are arranged as shown the figure below. A
معمموهم
6
If C stretches by 3cm and bar xy is assumed to be weightless. Determine
(i) the spring constant.
(2mk
(2ml
(ii) the extension in A.

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The a992 steel rod bc has a diameter of 50 mm and is used as a strut to support the beam. determine the maximum intensity w of the uniform distributed load that can be applied to the beam without risk of causing the strut to buckle. take f.s. = 2 against bucklin

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface