How to calculate the distance between force and point in space

1. Take opening the door as an example
you pull the door outward
the door doesn't move
if you push harder, the door will fall off<
this is the meaning of the moment of force to the axis
to the fixed point
you can use the seesaw as an example
three children
two people sitting on the left and right sides
one child sitting in the middle
whether the children in the middle exist or not will not affect the children's game on both sides
in the middle

2. First, the moment of the force P to point a is calculated, and the direction is along the Z axis, and then it is projected to ab; The projection of the moment of the force to the point on an axis passing through the point is equal to the moment of the force to the axis.

3. Android
the original meaning of Android refers to "robot", which is also the name of open source mobile phone operating system based on Linux platform announced by Google on November 5, 2007. The platform is composed of operating system, middleware, user interface and application software

the word Android first appeared in the French writer Auguste Villiers de l & # 39; In 1886, Elle Adam published the science fiction novel "the future Eve" (L & #39; è In the future. He named the human looking machine Android
the logo of Android was designed by ascender company and was born in 2010. Its design inspiration came from the graphic symbols on the doors of men's and women's toilets. [1] so Bullock drew a simple robot whose trunk was like a tin can, and there were two antennas on its head, so the Android robot was born. The text used a font called "droid" specially made by ascender company. Android is a green robot, and green is also the symbol of Android. The color is drawn by PMS 376c and # a4c639 in RGB, which is the brand symbol of Android operating system. Sometimes, they also use a plain text logo[ 1]

4. 275 can choose
Dongquan Valley
Burning Plain
to WASER silver mine and fuser silver mine
very easy to practice to 300
to 300
to Hellfire Peninsula
glory Fort LM or Salma BL to learn
to learn well
to dig magic iron ore in Hellfire all the time
about 320 can go to zanga swamp
because in addition to Hellfire
other places Tudou will brush the gold mine
and dig it bit by bit
but it would be very depressing if there were no big birds

5. It depends on how you use it. VIP may be better if it is used for a long time. If you only use it once in a while, you can use it in the form of Newton coins. How much will it cost.

6. Dongquan / Dongwen / Xiwen / feywood / crater / xilisus / combustion all have se silver and fuser mines. mining these mines can upgrade skill points and sell well, but BL and LM are different, and engineering and non engineering are also different.
BL most people will choose Dongquan / feywood / Dongquan because these areas are very close to the main city
LM most people will choose combustion / feywood / Dongquan, The reason is the same as above
the project will choose Dongquan / crater / xilisus, because the project has a transmitter
in addition, most Druid miners choose Dongquan and feywood, because XD can directly go to moonlight forest land
thieves like to go to the three wormholes of xilisus for mining

8. Using money to buy with others on a special platform on the Internet, bitcoin is virtual and can only be a symbol on the computer. Mining technology is not good, because it requires very professional machines.

9. The fire dragon is easy to use and has quite complete functions. It's used all the time. It's easy to use. It's a legend
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10. Your configuration is too rubbish. The graphics card is wasted