chalmersphua

for twitter points

[chalmersphua @chalmersphua]

@HishammuddinH2O @MalaysiaMFA water dagger

[chalmersphua @chalmersphua]

@HishammuddinH2O water dagger

[chalmersphua @chalmersphua]

https://t.co/PBCOur71oG

#PZ222 @ProfZirul
Why must Gaussian surfaces be spherical or cylindrical? Not cubical? It’s necessary for fluxes to be perpendicular to Gaussian surfaces. This video shows how cubical Gaussian surface is still possible but we wouldn’t want to use it.

[chalmersphua @chalmersphua]

#PZ222 @ProfZirul
I tear a paper towel into pieces, got a cloth and rice scooper, they’re all initially uncharged. Then I rubbed the cloth on the scooper for 20s. As electrons jumps onto the cloth, it becomes negatively charged, the positive scooper attracts neutral paper pieces

[chalmersphua @chalmersphua]

#PZ222 @ProfZirul https://t.co/386nqoNa5v
This video explains the twin paradox using a time-distance graph. It proves that the space-bound twin travel through time faster instead of the stationary twin in a small part of the journey. I like the quality and content of this video!

[chalmersphua @chalmersphua]

@ProfZirul #PZ221 @ProfZirul
Unknown origin,
Everlasting energies,
They’re invincible!

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@ProfZirul #PZ221
Conserve energy,
Do not try to destroy it,
It’s invincible!

[chalmersphua @chalmersphua]

@ProfZirul #PZ221 @ProfZirul Consider this a system of a skateboard and the earth, here I’d done positive work as it speeds up after I applied external force to it. Clearly it underwent a force displacement as it moved away from its initial position.

[chalmersphua @chalmersphua]

@ProfZirul #PZ221 @ProfZirul This is an inelastic collision of a system consist of a ball and the wall. KE turned into PE as the ball hits the wall. After the collision, part of Ksys, dissipated into sound and thermal energy Kconv, while the rest remained as KE for the ball

[chalmersphua @chalmersphua]

@ProfZirul #PZ221
Impulse is the change in momentum of an object when acted upon by a force for a time interval. So, impulse==change in momentum==force*time interval. The amount of force and time of my hand on the toy car already in motion is the impulse.

[chalmersphua @chalmersphua]

@ProfZirul #PZ221
This is a slow-mo video of me dropping a plastic cup from approximately 5ft above ground. Gravity causes it to fall at a constant acceleration of 9.8m/s^2. Due to it’s light weight, in the presence of air resistance, it falls on a much slower rate compare to free fall.

[chalmersphua @chalmersphua]

@ProfZirul #PZ221 @ProfZirul Caroline Herschel was a German astronomer. During her career, she was the first woman to discover a comet and the first to have her work published by the Royal Society in England. She was also the first woman in England to get paid for her scientific work.

[chalmersphua @chalmersphua]

@ProfZirul #PZ221 @ProfZirul
McNuggets dipped in barbecue sauce