6.2: Thermal Last updated Jan 21, 2023 Save as PDF 6.1.5: Snell's Law 7: Ethical use of Engineering Materials Page ID93268 ( \newcommand{\kernel}{\mathrm{null}\,}\) (unable to fetch text document from uri [status: 0 (UnableToConnect), message: "Error: TrustFailure (Ssl error:1000007d:SSL routines:OPENSSL_internal:CERTIFICATE_VERIFY_FAILED)"])