subject
Engineering, 03.09.2019 00:30 cammiecam49

An 80 kg man descends to the ground from an aeroplane using a parachute. if the drag coefficient of the parachute is 0.5 and the density of air is 1.35 kg/m3, calculate the required diameter of the parachute so that the man descends with a velocity of 25 m/s.

ansver
Answers: 2

Another question on Engineering

question
Engineering, 03.07.2019 14:10
Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned
Answers: 2
question
Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
question
Engineering, 04.07.2019 18:10
During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false
Answers: 2
question
Engineering, 04.07.2019 18:10
An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0
Answers: 3
You know the right answer?
An 80 kg man descends to the ground from an aeroplane using a parachute. if the drag coefficient of...
Questions
question
Mathematics, 25.08.2019 06:30
Questions on the website: 13722362