Question

In a 45° bend, a rectangular air duct of 1.0 m² cross-sectional area is gradually
reduced to 0.5 m². Determine the magnitude of the force required to hold the duct
in position, if the velocity of flow is 20.0 m/s at 1 m² cross-section and the pressure
at both sections is 40 kN/m². Specific weight of air is 11.0 N/m².

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Answer 1

Answer:

Art Integrated ProjectA sphere of mass m and radius R rolls without sliding on a horizontal surface. It collides with a light spring of stiffness K with a kinetic energy E. If the surface (AB) under the spring is smooth and E = 7J and K = 10 N/m, find the maximum compression of the spring.

Explanation:

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