2 cuerpos estan colocados en el suelo. Uno tiene 80 kg y una superficie de apoyo de 400 cm2 y el otro tiene 250 kg y una superficie de apoyo de 1000 cm2. ¿cual de ellos ejerce mayor presion sobre el suelo?

The object 2  (250kg and 1000cm^2) does more pressure in the floor.

Explanation:

This question says:

There are two objects:

One with a mass of 80kg and a contact surface of 400cm^2, and the other with a mass of 250kg and a surface of 1000cm^2

which one does more pressure in the floor?

And, as this is a math question, i will solve it in English

The pressure is P = F/A

where F is the force that the object does in the surface, in this case the weight, and A is the area of contact.

For the object 1, the pressure is:

P1 = m1*g/A1 = g*(80kg/400cm^2) = g*0.2kg/cm^2

where g is the gravitational acceleration:

for the other object we have:

P2 = ,2*g/A2 = g*(250kg/1000cm^2) = g*0.25kg/cm^2

Here we can see that P2 is bigger than P1, so the object 2 does more pressure in the floor.

c.the charges if the proton and electron and gravity