Aparachutist is in free fall at a rate of 200 km/h when he opens his parachute at an altitude of 600 m. following a rapid and constant deceleration, he then descends at a constant rate of 60 km/h from 586 m to 30 m, where he maneuvers the parachute into the wind to further slow his descent. the parachutist lands with a negligible downward velocity.
1. determine the time required for the parachutist to land after opening his parachute.

If a particle moves along a path such that r : (3 sin t) m and ? : 2t rad, where t is in seconds. what is the particle's acceleration in m/s in 4 seconds? a)- 16.43 b)- 16.29 c)- 15.21 d)- 13.79

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false