Yeganeh Memarian

I want to know the physics laws in these devices,even if you knw one of them,put the number and answer:

1-scanner

2-ball screw

3-matrix printer

4-hinge

5-linear ball bearing or ball bearing

please answer soon,thanks for your help.

I have a Sony mp3 player with one inch simple screen.it has broken and i want to fix it.I just want to have a picture of inner components of that to put the component in the correct place.

if you want a exact picture of broken parts or etc give me your E-mail to send you.

thanks for your useful help.

we have a baby in 2 weeks.our country is not an English language country but I want our infant to learn how to speak English since he born.and make English his native language!

NB: my parents dont know English so in this case maybe I should learn him English as his second language.but how can i learn him from the first.thank u for your useful helps.

I want to delete one of my profile pictures,please help me to manage.

ANALYSIS :

100x2+40x -21=?

a4+a3+a2 - 2a- 3=?

x4 - 10x2 y2 + 9 y4=?

X7+x6+x5+x4+x3+x2+x+1=?

(x -1)- x (x -1)=?

5x5 -5x (25x2 -144)=?

11x+15x – 14=?

A6-b6=?

A9 - b9=?

please help me.the numbers after alphabets are powers.

I am in 9th grade of school

please visit this site and tell me the value of x (A)and y(B).subject:(I know, I don't know the problem.)

http://delphiforfun.org/programs/know_dont_know.ht...

please visit this site and tell me the value of x (A)and y(B).subject:(I know, I don't know the problem.)

http://delphiforfun.org/programs/know_dont_know.ht...

If we shoot a spherical object like a rock, into the mud,and the mud is lame enough, some part of the rock sinks into the mud. A young physicist throws a stone from a certain height to be plunged into the mud.

Yet if Stone wants to double the amount before the case goes down into the mud, how high should it start?

Explain your answer.(the answer is not 2)

Motor boats moving and tilting the front-end rises when they have speed. When the

The boat is accelerating, it is reasonable to be tilted upward, but even when the motor boats

are moving with constant velocity does not quite horizontal. Describe the reason for this phenomenon.

the gravitational force that sun exerted on the moon is about twice the gravitational force that earth exerted on the moon , so why not escaped moon from earth to sun?

the gravitational force that sun exerted on the moon is about twice the gravitational force that earth exerted on the moon , so why not escaped moon from earth to sun?

my name is yeganeh(یکانه) .I myself think that my name is a pershian name,because Im an iranian person.

but what do you think of my name?say your answer by reson.