Two cars, A and B are moving in the same direction with their velocity, 12m/s and 9m/s respectively. what is the relative velocity of car, A with respect to car B? If the both cares are travelling in opposite directions, what will be the relative velocity? ​

Which of the following is not am example of a polymer? protein nylon kevlar concreta

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?