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Light from the Sun takes ~8 minutes 20 seconds to reach Earth, travelling at 300,000 km/s.
Did you know?
Light from the Sun takes ~8 minutes 20 seconds to reach Earth, travelling at 300,000 km/s.
Let a wire be suspended from the ceiling (rigid support) and stretched by a weight W attached at its free end. The longitudinal stress at any point of cross-sectional area A of the wire is:
Zero
To solve this problem, we need to understand the concept of longitudinal stress in a wire.When a weight is attached to the free end of a wire suspended from a rigid support,the wire experiences a force due to the weight. This force is equal to the weight The longitudinal stress at any point of cross-sectional area of the wire is defined as
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