1.On a sea-level standard day, a pressure gage, moored below the surface of the ocean (SG=1.025) reads an absolute pressure of 1.4 MPa. How deep is the instrument (m)?
2.The cable stays AB and AD help support pole AC. Knowing that the tension is 120 lb in AB and 40 lb in AD, determine graphically the magnitude and direction of the resultant of the forces exerted by the stays at A using (a) the parallelogram law, (b) the triangle rule.