Recent content by wudingbin

An axial loading question See attachment below. Have no ideal how to start the question.

ok, thank you. Is my explanation in term of wave correct?

Sir, Heisenberg's uncertainty applies for electron in atom. but the case i stated is an isolated electron confined to space

hi guys, is it possible for electron to have zero K.E in a confined region in space? My guessed is, due to the wave nature of electron, if electron were to possesses zero KE, its wavelength will have to approach infinity since p = h / wavelength. therefore its not possible for electron to have...

hi sir, i think i made a big conceptual mistake, thinking that the linear collision is elastic which is not, because some of the inital linear kinetic energy is converted into rotational energy, therefore the final linear speed of the projectile should not be calculated using elastic collision...

sorry sir, i should have upload the diagram earlier. the projectile hit the rod at 45 degree

hi sir, if Vcm= 2/3Vo. then according to the conservation of mechanical energy, rotation of the rod could nt happen. the translation speed is Vcm.

a rigid massless rod of length L joins two particles each of mass M. The rod lies on a frictionless table, and is struck by a particle of mass M and velocity v0. After the collision, the projectile moves straight back. Find the angular velocity of the rod about its center of mass after the...

Please take a look at the question and help me find the v1 and v2. thank you!

Hi guys, i had just bought a few 3A slow blow fuse. The motor inside the letterpress machine start to run for about 5 mins before i saw some smokes coming out from the transformer. And now my transformer is burnt. Why is that so? I tried to find technician but none of them know how to fix...

i am currently using ST500 transformer which is able to produce 500Watt of power more than enough for the machine. However, the frequency needed by the machine is 60Hertz but Singapore's frequency is 50 Hertz so...?

i went to US to check out the machine before shipping, its working perfectly ok

Sir please take a look at the spec of the machine.

Please help -- machine blowing fuses! Recently i just bought a letterpress machine from USA. The electrical requirement of the machine is as follow: 1) 115V 2) 2.6A As i am living in singapore which has a different voltage, i bought a transformer to step down Singapore's 240V to 110V, which...

for an electromagnet is energy required to align the domain is such a way that a piece of steel become a magnet and start attracting other metallic ojects??