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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.
Discover the angle of twist: Discover the diameter of the shaft needed to transmit 60 kW at 150 r.p.m., if the maximum torque is possible to exceed the mean torque by 25% for
Forces working on dam: Let a dam retaining water as illustrated in Figure (a). What are the forces working on it? Solution The forces working on dam are as follows:
Compute the utilization of peak capacity: If the fabrication department of the engine manufacturer, operated under ideal conditions, produces 100 engines per day. Management b
Q. Define Gas Welding? Metal joining process in which the ends of pieces to be joined are heated at their interface by producing coalescence with one or more gas flames (such a
The wall shown is 1 m thick. The left surface of the wall (x=0) is maintained at a constant temperature 200 degrees Celsius. The right surface (x=L=1 m) is insulated. The thermal c
Q. Design the Nozzle Connections ? Nozzle design shall be such that if the actual combined thickness of the shell or head and reinforcing pad exceeds 50 mm, either integrally r
why 4R kinematic chain do not form different mechanisms?
compressor
The first successful numerical machine tool was developed at MIT in the year:
(a) Draw P-H and T-S diagrams for following cases : (3) (i) Cycle with superheated vapour before compression. (ii) Cycle with sub-cooling or under-cooling of refrigerant.
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