How can I get to Wuxi CDC
The moment of the space force to the point is the location vector
The summary ofvector law is based on people's understanding of the generalized symmetry of space. The symmetry (invariance) of translation and rotation based on vector is valid for all the laws discovered so far. Using vector analysis is called mathematical analysis. This method is of great creativity and has some inspiration for physics research
extended data:
strictly speaking, vector must change sign in space inversion. In space inversion, the invariant sign is called pseudo vector. In physics, the angular velocity, angular momentum and moment are not vectors, but pseudo vectors. There are essential differences between vector and pseudo vector
The length of theline segment can indicate the size of the vector, and the direction of the vector is also the direction of the arrow. In physics, displacement, velocity, force, momentum, magnetic moment and current density are all vectors. As opposed to the concept of vector, scalar has only size but no direction
1. Hold from the arm of force (pointing to the action line of force) to the direction of force, then the direction of thumb is the direction of moment
2. The thumb points to the action point of the force, the index finger points to the direction of the force, and the remaining three fingers bend inward, so that the direction of the three fingers is perpendicular to the palm, then the direction of the three fingers is the direction of the moment
the right hand is flat, so that the thumb is perpendicular to the other four fingers, and is in the same plane with the palm. Put the right hand into the magnetic field and let the magnetic inction line enter from the palm (when the magnetic inction line is a straight line, it is equivalent to the palm facing the N pole). If the thumb points to the direction of wire motion, the direction pointed by the four fingers is the direction of inced current (motional electromotive force) in the wire. Generally know the magnetic field, current direction, the direction of any two, let you judge the third direction
right hand screw rule: (ampere rule) hold the solenoid with the right hand, bend the four fingers to the current direction in the solenoid, and the end pointed by the thumb is the N pole of the solenoid. For the magnetic field of linear current, the thumb points to the current direction, and the other four fingers bend in the direction of the magnetic inction line (the direction of the magnetic field or the direction of the north pole of the small magnetic needle or the direction of the force on the small magnetic needle)
Hello friend, first of all, there is a label on the back of the graphics card. It can be seen that as long as it is a new card, it is not easy to fake.
and the picture above, you can find that the lizard is protruding, but the lizard is concave, which may also be a distinction
and then the frequency, The core frequency of the fierce armored lizard is 50MHz lower than that of the fast armored lizard
what I use now is the fierce armored lizard, which is pretty good. You can choose carefully
in fact, the difference between the two is mainly the problem of materials. Although the default frequency of the fierce armored lizard is low, it can be overclocking, and the stability and heat dissipation will be better