arXiv subjects

Wahyu Srigutomo

Publications and source records attributed to Wahyu Srigutomo.

3 recordsLinked to original sources

arXiv2014

Energy Conversion in Lifting Mass Vertically using a DC Electric Motor by Observing Required Time to Lift Object for a Certain Height

In lifting mass vertically using a DC electric motor energy conversion from electric energy, through intermediate kinetic energy, to gravitation potential energy shows that time required Δt to lift load mass m for height h is dependent quadratically to m. Several approaches to explain the experiment observation are discussed in this work, from ideal energy conversion to numerical solution from differential equation.

physics.ed-ph↗

arXiv2014

A Simple Viscometer for High School and First Years Undergraduate Program Students: Theory and Experiment

A simple viscometer consists of mineral water bottle and trink straw is used to predict vicosity of water. A model is derived from Bernoulli's principle and Poiseulli's law. Value about 0.374 - 0.707 cP is obtained for observation in room temperature. About 10 minutes of observation time is needed to get the data. Keywords: equation of continuity, Bernoulli's equation, viscosity coefficient, Poiseulli flow.

physics.pop-ph↗

arXiv2011

One dimension spring supported ball on top of a sinusoidal vibrating plate: A forced oscillation simulation using molecular dynamics method

A ball supported by a spring is set on top of a plate which is sinusoidal vibrated. The motion is limited to one dimension motion. It is assumed that the spring is an ideal one with zero mass. The vibrating plate is considered much heavier than the ball, so that the ball motion has no influence on the plate motion. Plate vibration frequency is varied around the frequency of ball-spring system. Resonance phenomenon is reported, which needs a phase match condition to occur.

physics.class-ph↗