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A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
The horizontal angle between the true meridian and magnetic meridian at a place is called
Horizontal angle between true meridian and magnetic meridian is __________
The horizontal angle between the true meridian and the magnetic meridian shown by needle at the time of observation is called ______
The horizontal angle which the magnetic meridian makes with the true meridian is known . . . . . . . .
The horizontal angle which the magnetic meridian makes the true meridian is
The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude:
The horizontal angle between the true meridian and line is called . . . . . . . .
The angle between the geographical meridian and magnetic meridian is called as ______.