Hey,

If we talk only about coding a program,  physics and chemistry is not required. Because coding of program only involves the rules and syntaxes defined in computer science but ,

As far as i know  ,  physics and chemistry certifications is actually not needed in becoming a computer science engineer but knowledge of both physics and chemistry is required to be an engineer. Physics and chemistry is basically  connected with maths whereas maths is directly connected with computer science.  Maths is the primary requirement in becoming a software professional, as in computer science we have to develop no. Of logics and these logics can only be formulated with the help of maths . Therefore , we can say maths is the foundation of cs .

Whereas , Using computational chemistry, a computer may comprehend a particular scientific concept, such the structure of a protein, and then discover how it works in practise. Chemistry and computers are utilised to optimise motor vehicles and generate solar cells, in addition to producing pharmaceuticals and solar cells. As we can see now, various  Developers  developed no. Of AI based tools and no. Of application using different formulas of chemistry is just  because of they have some knowledge about chemistry.

And if talk about physics, the knowledge of physics concepts helps us to develop various softwares and application such as , speedometer speedometer if we try to code the functioning of speedometer then it requires the formula used in calculating the speed which only cones from the physics.

so from above , we can conclude that physics and chemistry is sonewhere important  to become a software engineer.

Hope this will help you!

Thank you!