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Progress Sums:-1,-2,-3,-4,-5... 1,2,3,4,5...
We express the formulas:Sn= (n²a₁+n)/2, ; Sn-1=(n²a₁-n)/2,. (n - Number of summing members, a₁ - first member of the progression. With a negative or positive value n. Expressions Sn-1, Sn-2 …
Collision of gas molecules is the source of energy. We assemble a simple galvanic cell (analogous to the well-known battery). We place two electrodes with a potential difference in a NaCl solution. With a fixed load of the external circuit, we discharge th …
Directional movement.
Properties of the magnetic field of the permanent magnet the neutral zone is the presence of force directed motion (self-motion magnetic) with a strong attraction towards any main pole of the other magnet (magnetized ferromagnet …
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