Sobre un émbolo de sección 3 cm2 que se mueve dentro de un pistón se coloca una masa de 20 kg. ¿Qué presión en Pa se ejerce en el fluido del interior del pistón?

Responder:

653.333,33 Pascal

Explicación:

Presión = Fuerza / Área

Dado lo siguiente

Fuerza = masa * aceleración debida a la gravedad

Fuerza = 20 * 9,8

Fuerza = 196N

Área = 3cm ^ 2

Expresar en m ^ 2

1cm² = 0.0001m²

3cm² = x

3cm² = 0.0003m²

Presión = 196 / 0.0003

presión = 653,333.33

Por lo tanto, la presión en pascal es 653,333.33 Pascal

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia