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A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same which one of the following will not be affected?Solution) In free space, neither acceleration due to gravity for external torque act on the rotating solid sphere.Thus, taking the similar mass of sphere if radius is increased then moment of inertia, rotational kinetic energy and angular velocity will change but according to law of conservation of momentum, angular momentum will not change.
Dear Engineer! I have an aluminum tube(6061) fixed at one end (Cantilever Beam). The length is 180” and the load on the other end is 150 lbs. Question: What size of tubes I s
STRESS ANALYSIS
Analyse the beam: Analyse the beam illustrated in Figure and draw the SFD, BND & thrust diagram. Situated the point of contraflexure, if any. Figure Solution
a) A pair of 20 degree full depth involute spur gears having 30 and 50 teeth respectively of module 4mm are in mesh. The smaller gear rotates at 1000 rpm. Determine- 1) Contact
example on operation sheet?
Process Selection and Sequencing In this, some factors, which have an influence in all processes, are discussed. The factors include size, shape complexity, tolerances and produ
Evaluate stress in fibre: Example, the matrix material can be stressed to its full strength of 80 MPa, calculate the allowable % of broken fibres. What will be the stress in f
difference between pipe and tube
What is raft foundation? A raft or mat can be considered as a combined footing which covers the entire building area and supports all columns and walls. Such a foundation may c
Necessity of Cooling System To prevent the engine from excessive heating. To avoid the piston seizure due to thermal expansion. To prevent burning of lubricant a
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