g-acceleration of gravity: its measurement from the shape of water by using a computerized rotational system
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Iop Publishing Ltd
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This paper proposes a different experimental setup compared with the traditional ones, in order to determine the acceleration of gravity, which is carried out by using a fluid at a constant rotation. A computerized rotational system-by using a data acquisition system with specific software, a power amplifier and a rotary motion sensor-is employed in order to evaluate the angular velocity and g. An equation to determine g is inferred from fluid mechanics. For this purpose, the fluid's parabolic shape inside a cylindrical receptacle is considered using a rotational movement.
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European Journal of Physics. Bristol: Iop Publishing Ltd, v. 28, n. 5, p. 915-921, 2007.
