A 20 cm square concrete piling is loaded with a 10 kN force along one centerline and x centimeters from the other centerline. What is the maximum value of x such that the concrete remains in compression everywhere?

(A) 3.3 cm
(B) 9.0 cm
(C) 14 cm
(D) 17 cm

The correct option is A

Explanation:

See the picture attached

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.