A submarine is stranded on the bottom of the oceanwithitshatch25.0mbelowthesurface.Calculatetheforce needed to openthe hatch from the inside ,given it is circular of 3.00×105 N/m2.(a) The water enters a hose with a 3.00-cm inside diameter andrises 2.50 m above the pump. What is its pressure at this point?(b) The hose goes over the foundation wall, losing 0.500 m inheight, and widens to4.00cmindiameter.Whatisthepressurenow?Youmayneglect frictional losses in both parts of the problem
