The amount of extension in an elastic spring varies directly with the weight hung on it. If a weight of 250 gm produces an extension of 3.5 cm, find the extension produced by the weight of 700 gm.

The amount of extension in an elastic spring varies directly as the weight hung on it. If a weight of 150 gm produces an extension of 2.9 cm, then what weight would produce an extension of 17.4 cm?

The amount of extension in an elastic string varies directly as the weight hung on it. If a weight of 150 gm produces an extension of 2.9 cm, what would produce an extension of 17.4 cm?

A wire of length 2.5 m has a percentage strain of 0.012% under a tensile force. The extension produce in the wire will be

When a load of 5kg is hung on a wire then extension of 30 cm take place then work done will be :-

A wire of uniform cross-section is stretched between two points 100cm apart. The wire is fixed at one end and a weight is hung over a pulley at the other end. A weight of 9kg produces a fundamental frequency of 750Hz . (a) What is the velocity of the wave in wire? (b) If the weight is reduced to 4kg , what is the velocity of wave?

A spring of force constant 800N//m has an extension of 5cm. The work done in extending it from 5cm to 15cm is

A spring of force constant 800 N/m has an extension of 5 cm. The work done in extending it from 5 cm to 15 cm is:

The ratio of copper and zinc in an alloy is 5:3 . If the weight of the copper in the alloy is 30. 5 grams, find the weight of zinc in the alloy.