# theoriginal169

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1. ## 12th science physics problem of occilation

we should know the periodu other wise we cant know the answer.

ill check them thank you. Does their book have challenging exercises?
3. ## What should be the acceleration when a object is pushed by hand ?

necessary data 1 mass of object 2 fraction between mass and floor 3 how much time the force will be applied 4 the diagram of force-time or probability density of that diagram( to find mean value and standard deviation) but for more precise solution the diagram would be good. 5 G 6 the angle between the force vector and object 7 the cohesion between hand and object 8 the air pressure of environment also shape of object to calculate the boundary conditions of air. 9 the place of the experiment to calculate the centrifugal effect of earth. bla bla bla in conclusion you cant know the exact acceleration unless you have an enormous data. i can only tell you the possibilities.
4. ## 12th science physics problem of occilation

what is the period T of system?

i got that book vol2. i can understand it. and it has detailed proofs which i didn't saw at my previous book . so thank you good advice. but its a little old so i dont know is it a problem or not?
6. ## what is super spcherically symmetric

the 3d harmonic oscillator potential is super spherically symmetric what does it means. Wikipedia didn't help me so much.
7. ## spin question

you didnt get my question so i try to explain it ...
8. ## Calorimetry Help

calorimeter calculates the heat. q=mc delta t t is the tlast - t0 ideal clcmeter doesnt gives any heat to outside or gets from outside . so it only measures your reactions heat. for example you make a exothermic solution. so you need to measure your solutions c m and the time of reaction you ll find q(enthalpy). but you cant know the c so you make the reaction in clcmeter it ll show the q.
9. ## spin question

you are talking about the quantum number for the composite systems there is no place for m at this situation . H=-gamma b0 Sz is the Hamiltonian matrix for the spin at the magnetic fields . and you can change the axis whit Schrodinger equation ih dx/x =H x where is x is eigenspinor .
10. ## spin question

B=B$_{0}$cos($\omega$t)k an electron is at rest in an oscillating field bo and omega is constant and k is operator for z how to construct the Hamiltonian matrix ? Merged post follows: Consecutive posts mergedi tougth H=-b0$\gamma$h/2$\sigma$$_{z}$
11. ## The best smoke bomb

h2s or h2s2 i cant remember but its odor is like a shit we used it alot at chem 102. but i don't remember how to make it.
12. ## What would happen if a black hole swallowed an anti-matter black hole?

is that possible that they would make a worm-hole.
13. ## Science Paper

hormones genetics reproductive system phenotypes the differences at blood count etc.
14. ## Whats the most dangerous chemical you have used / seen?

cn solutions are extremely dangerous also they can pass through the gloves.
15. ## I need a function

its a some kind of power series expansion
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