A "moving sidewalk" in an airport terminal building moves at a speed of 1.3m/s and is of length 32.0m . A woman steps on at one end and walks at a speed 1.9m/srelative to the moving sidewalk. Part A

How much time does she require to walk from one end to the other if she walks in the same direction the sidewalk is moving?Part BHow much time does she require to walk from one end to the other if she walks opposite to the direction the sidewalk is moving?

Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?

Ms.hidalgo opens the door to her classroom. her classroom is 60 degrees and the air outside is 80. predict what will happen using your knowledge of how heat flows.

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.