Question

por favor .........................

Answer 1

Respuesta:

•5b.

•6b.

•7a.

•8c.

Explicación:

•5/

•P=10 N/cm²=(10 N)/(10^-4 m²)=10^5 N/m².

•6/

•P=F/S=(80 N)/(2 m²)=40 N/m².

•7/

•S=(5t)×(2t)=10t².

•P=F/S=(20 N)/(10t²)=2 N/t².

•8/

•F=(30 N)+(40 N)=70 N.

•P=F/S=(70 N)/(2 m²)=35 N/m².