W UI VOUR and your calculator, but nothing else! IU points A structural I beam is...
W UI VOUR and your calculator, but nothing else! IU points A structural I beam is made of steel. A view of its cross-section and its dimensions are shown in Figure. The density of steel is 7.56 x 10 kg/m. (a) what is the mass of a section 2.25 m long? 15.8 cm (b) Assume that the atoms are predominantly iron, with atomic mass 55.9 u (where atomic unit of mass u = 1.66 X 102 kg). How many atoms are there in this section? 360 cm Density - mass volnic 1.00 cm 1.00 cm (2) - 10 points Explain what is the dimension of the following quantities and write them in Sl units: (a) 2.0 Ms (b) 4.2 yg (c) 2.4 gallon (d) 45 ft/s2