Multiple Choice Question: Xoc9dHk-1 How much work is done in winding-up the upper half of the chain?

How much work is done in winding-up the upper half of the chain?

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Orphaned Multiple Choice Questions (MCQ) due to changes of exam system.

The largest number by which the expression $n^3 - n$ is divisible for all possible values of $n$, is:
A mechanical device which when installed in the pipe flow system will add energy (output) to the system is known as:
What is the value of 0.727272 in fraction?
What time between 2 and 3 o’clock will the angle between the hands of the clock be bisected by the line connecting the center of the clock and the 3 o’clock mark?
The sum of the digits of a two-digit number is 11. When the digits are reversed, the new number exceeds the original number by 9. From the original number, calculate the product of tens digit to the square of the units digit.
Determine the coordinates of the center of the circle defined by the equation $x^2 + y^2 + 4x - 6y - 12 = 0$.
Line AB has point A(4, 5) and point B(-3, -2). Find point C along line AB if distance BC is three times the distance AC.
A circle with radius 6 has half its area removed by cutting off a border of uniform width. Find the width of the border.
If the power of an engine grows by 10% when the number of its cylinders is increased by one, which of the following is closest to the ratio of the power of a 9-cylinder engine to that of a 12-cylinder engine?
FgoE76U-2 Find the velocity at t = 0.
Solve for $x^2$ if $48^{1/x} = 4 \times 3^{1/x}$.
A sector of a circle with radius 10 cm has a central angle of 120°. Find the arc length of the sector.
Which of the following is an integer?
Which of the following is equal to $\dfrac{\sin \theta}{1 + \cos \theta}$.
A semi-elliptical arch in a stone bridge has a span of 6 meters and a central height of 2 meters. Find the height of the arch at a distance of 1.5 m from the center of the arch.

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