Steam enters an adiabatic turbine at 1000 °f, 700 psia and leaves at 800 °f, 400 psia. the mass flow rate is 1000 lbm/hr.
a) determine the work produced
b) determine the ratio of the outlet flow area to the inlet flow area to keep the exit velocity equal to the inlet velocity.

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

Clyde and marilyn are riding a roller coaster. during which section(s) of the track is their potential energy converted to kinetic energy? a. from point b to point c only b. from point b to point d only c. from point a to point b only d. from point a to point b and from point c to point d