Question

the pressure exerted on a surface is the amount of force exerted on the surface per unit of the surfaces area. 430 newtons of force is exerted on surface a, which has an area of 0.010 square meters. 430 newtons of force is exerted on surface b, which has an area of 0.43 square meters. what is the positive difference between the pressures, in newtons per square meter, exerted on surface a and surface b?

Explanation:

Step1: Calculate pressure on surface A

Pressure formula: \(P = \frac{F}{A}\). For surface A, \(F = 430\) newtons, \(A=0.010\) square meters. So \(P_A=\frac{430}{0.010}=43000\) newtons per square meter.

Step2: Calculate pressure on surface B

For surface B, \(F = 430\) newtons, \(A = 0.43\) square meters. So \(P_B=\frac{430}{0.43}=1000\) newtons per square meter.

Step3: Find the difference

\(\text{Difference}=P_A - P_B\). Substitute values: \(43000-1000 = 42000\) newtons per square meter.

Answer:

\(42000\)