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What is the hydrostatic pressure at the top of the  head of a standing individual in mmHg

Un conductor recto infinito conduce una corriente . El campo magnético a una distancia  del conductor vale, usando 

Un elemento de corriente

Para un arco circular de radio que subtiende un ángulo

Dos conductores paralelos separados conducen corrientes e en el mismo sentido. La fuerza por unidad de longitud entre ellos es:

Which of the following is the electron configuration of the manganese(II) ion (Mn²⁺)?

In what row and group would you find the element with configuration [Ne] 3s² 3p³?

Arrange the following ions in order of increasing ionic radius: N³⁻, O²⁻, F⁻, Ne

Which of the following is the electron configuration of the iron(II) ion (Fe²⁺)?

The successive ionization energies of a certain element are:I₁ = 589.5 kJ/mol, I₂ = 1145 kJ/mol, I₃ = 4900 kJ/mol, I₄ = 6500 kJ/mol, I₅ = 8100 kJ/mol.This pattern suggests the element is: