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visits member for 11 months
seen May 15 at 15:02

Apr
27
answered Why does ice melts, waits for 100 degrees and THEN vaporises? Why is not the process of expansion of things continuous?
Oct
30
answered Why does the specific thrust of an ideal turbojet drop with increasing compressor pressure ratio?
Oct
29
comment A satellite in orbit fires it's engines for a short interval. Is the new orbit closer or further away?
@sheheryar-zaidi: Satellite has gravitational acceleration $g$ at each point of its trajectory. Orbit can be a circle when $\frac{v^2}{r}$ (inward acceleration of circular motion) equals $g$.
Oct
28
answered A satellite in orbit fires it's engines for a short interval. Is the new orbit closer or further away?
Oct
27
answered Interpretation of Free Damped Vibrations
Oct
26
answered The Mysterious Reverb in a Jar of Hair Gel
Oct
26
comment Cylinder rolling down slope problem
@ja72: yes it is GeoGebra, nice tool
Oct
26
answered Cylinder rolling down slope problem
Oct
25
revised Intuitively, how can the work done on an object be equal to zero?
proper term was used
Oct
25
awarded  Supporter
Oct
25
answered Intuitively, how can the work done on an object be equal to zero?
Oct
23
revised Understanding heat pump efficiency
added computation of COP as requested by author of question
Oct
21
answered Understanding heat pump efficiency
Oct
13
answered Physical meaning of Impedance
Oct
13
answered Why is charge $q$ symmetrically distributed?
Oct
7
comment rotational oblateness
If $\omega^2r$ is small but not insignificant - can $\omega^2r\cos^2(\phi)$ be omitted from the integral?
Oct
7
revised rotational oblateness
simplified, kept the essence
Oct
7
comment rotational oblateness
I meant centrifugal force at the equator (added to the answer). Centrifugal force at the equator is proportional to $\omega^{2}r$ and gravitational is proportional to $g$.
Oct
7
revised rotational oblateness
more precise wording
Oct
7
answered rotational oblateness