A student graduating from a Baltimore City high school throws their cap in the air at the end of the commencement ceremony. The cap leaves the student's hand at a speed of 98 m/s. How
long did the cap take to reach its' highest point? How long did it stay in the air? How high did
the cap travel into the air? There are three questions to answer, and you must show your work
to get all three points.

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

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.

Plz explain what friction, corollas, and a low pressure gradient does to an air parcel. what is 1+1=