326 reputation
11
bio website
location
age
visits member for 10 months
seen 11 hours ago

I'm a Secondary student with a interest in math and physics


Jun
3
revised What molecules are ionized in a lifter ion engine?
Link to desktop site
Jun
3
suggested suggested edit on What molecules are ionized in a lifter ion engine?
May
14
revised Taking force, mass and length as base units, find the dimensional formula of velocity
edited body
May
14
revised Taking force, mass and length as base units, find the dimensional formula of velocity
added 392 characters in body
May
14
answered Taking force, mass and length as base units, find the dimensional formula of velocity
May
12
awarded  Nice Answer
May
12
revised Flight time Toronto to Moscow the same
added 265 characters in body
May
12
answered Flight time Toronto to Moscow the same
May
10
awarded  Teacher
May
10
answered Why doesn't more light bounce off of things in the manner of sound?
Apr
5
comment Can a flying bullet be caught with your hands?
Related: what-if.xkcd.com/81
Apr
5
awarded  Informed
Jan
27
revised Maxwells' equations and Coulomb's law
added 172 characters in body
Jan
27
asked Maxwells' equations and Coulomb's law
Jan
26
awarded  Commentator
Jan
26
comment How to calculate air velocity in a fan?
If you actually have the fan you could use a Anemometer
Jan
18
comment Why do people with bigger hands/wrists have bigger torque advantages in arm wrestling?
The OP already pointed out that they have less strength based on other (I presume, non-torque related) tests
Jan
18
comment Dropping an object from a plane
You said ignoring air pressure, do you mean ignoring air resistance or buoyancy?
Jan
16
comment Why does Coulomb's constant have units?
Strictly speaking $a$ would be a constant in very specific circumstances, where all charges are a distance of 1 apart, this wouldn't be a very useful constant. However on the other hand $k$ isn't actually a constant it is $k=\frac{1}{4 \pi \epsilon_0}$ which makes it a constant only in free space, other materials have different values of $\epsilon$ and therefore $k$
Jan
16
comment Why does Coulomb's constant have units?
Yes they can, but in that case $a$ will have units $kg/C$ so the units workout.