Case study of heat generation/absorption and activation energy on MHD hybrid nanofluid (GO-MoS2/water) flow owing to a rotatfing disk oleh Assmaa Abd-Elmonem, Saira Kanwal, Mariam Imtiaz, Kashif Ali, Sohail Ahmad, Wasim Jamshed, Mohamed R. Eid, Nesreen Sirelkhitam Elmki Abdalla, Fayza Abdel Aziz ElSeabee, Sayed M. El Din