What is the magnitude of the maximum stress that exists at the tip of an internal crack having a radius of curvature of 4.5 × 10-4 mm (1.772 × 10-5 in.) and a crack length of 3 × 10-2 mm (1.181 × 10-3 in.) when a tensile stress of 160 mpa (23210 psi) is applied?

What is the magnitude of the resultant vector round your answer to the nearest tenth

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f

Which of these activities increases the amount of carbon in the atmosphere?