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Reducing friction by an air stream
Cut out a disc of cardboard about 10 cm in diameter. With a red-hot pin, burn a hole by the centre. Saw a small cotton reel in half and glue the unique end of one half over the middle of the disc. Search a piece of bamboo or some other tube which just fits the hole in the reel. Push this into the neck of a small balloon, using cotton or a rubber band to protected the joint.
Friction by an air stream
The boom DF and the column DE have a uniform weight of P55 N/m and the chain and load at F is P56 kN. Determine the Shear Force in kN rounded to 1 DP and the Bending Moment in kN.
Q. Evaluate Diameters of Bright and Dark Newtons Rings? Let ‘R' is the radius of curvature of a Plano-convex lens resting at a glass plate PQ. If t be the thickness of air film
Correction of short sightedness To remove this defect a convex lens is used in front of eye.
A certain radioactive substance has a half-life of 40 minutes. How much of an original 100 grams substance will remain after 2 hours? solution) m= m0/2t/T m=100 gms.. t=2 hours
Properties of laser: Lasers have applications in various disciplines of science and technology. They also find applications in industry, medicine and defence and space science
what are the condition for obtaining straight line fringes
I need help with this project ? every time I would turn on my lab work I would get bad grades, and science is my weakest subject
How is a wave front dissimilar from a ray ? Draw the geometrical, shape of the wave fronts when (i) light diverges from a point source, and (ii) light emerges out of a convex le
i need a full explanation on magnetism
What is an asteroid, comet, dwarf planet with respect to their mass, moment of inertia and dimension? Ans) Dwarf Planet is lighter,smaller than a planet ( Pluto ).They usually a
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