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When a bar of length '$$l$$' and diameter 'd' is rigidly fixed at the upper end and hanging freely, then the total elongation produced in the bar due to its own weight is (where w = Weight per unit volume of the bar)
If flying height of a spacecraft is H, the length of air base is B and the parallax difference between two points is dp, then the difference in height
The correction for parallax, is
The difference of parallax for a given difference in elevation is independent of
The value of geocentric parallax to be added to the observed altitude of sun is
The parallax of a point on the photograph is due to
In a right angled triangle the horizontal side measures 8 cm and the vertical side measures 12 cm. What is the area of the triangle?
A rectangular floor that measures 8 meters by 10 meters is to be covered with concept squares that each measures 2 meters by 2 meters. If a carpet square costs to cover 2/3 of the floor?
A rectangular floor that measures 8 metres by 10 metres is to be covered with carpet squares that each measures 2 metres by 2 metres. If a carpet square costs Tk. 12, calculator the total cost cover 2/3 of the floor?
The first three angles measures 10% less than the second. The third angle measures 20% more than the sum of the other two. Find the three angles of a triangle.