Fthe same net force is applied to a 7 kg object and a 21 kg object, then the a- 21 kg object accelerates three times faster than the 7 kg object. b- the 7 kg object accelerates three times faster than the 21 kg object. c- both objects accelerate at the same rate because the force is the same. d- neither object will accelerate because there is a net force on the objects.

Asher cycles 12 miles in 16 hours. what is his speed?

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.

Slab pull” is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere true or false