Recent content by hsbc2003

Homework Statement Just need some direction on the problem. 1. Homework Statement A poorly designed playground slide begins with a straight section and ends with a circular arc. A child starts at point P and slides down both sections of the slide. At some point on the circular arc, the...

Homework Statement Part 1: A motorist is traveling at 17 m/s when he sees a deer in the road 45 m ahead. If the maximum negative acceleration of vehicle is -7 m/s^2, what is the maximum reaction time (deltat) of the motorist that will allow him to avoid hitting the deer? Answer in units of...

Thanks for your reply PhanthomJay I used the method that you suggested for calculating the volume ((0.31)*(0.02)*(1.53))*2 + (0.24)*(0.02)*(1.53) = 0.026316 m^2 thus, mass= 0.026316 m^2 * density of iron= 198.949 Kg I rounded it to 1 significant figures and I got 2.0e2 kg Good news ...

Homework Statement A structural I beam is made of iron> A view of its cross-section and its dimensions is shown in the figure, where d = 2 cm, w= 31 cm, h= 28 cm and the length (not shown) of the beam is L= 1.53 m. The density of iron is 7560 kg/m^3. The atomic weight of iron is 55.85 g/mol...

Please add this title: Calculating the mass and number of atoms of a structural I beam. Homework Statement A structural I beam is made of iron> A view of its cross-section and its dimensions is shown in the figure, where d = 2 cm, w= 31 cm, h= 28 cm and the length (not shown) of the beam...