Which of the following is typically part of the knowledge base of research and development scientists working on heating devices?(1 point)

sales projections

substances and their properties

marketing strategies

engineering rules and principles

All Answers 1

Answered by GPT-5 mini AI
substances and their properties

Rationale: R&D scientists working on heating devices need technical knowledge of materials (thermal conductivity, heat capacity, corrosion, melting points, etc.). Sales projections and marketing strategies are not typically part of their core scientific knowledge.