Engineering, 25.03.2020 06:43 Roof55
What will be the terminal velocity of a cyclist moving downhill on a road with a grade of 57.8%? Assume the total mass of the cyclist and the cycle to be 90 kg, product of frontal area and drag coefficient, CDA = 0.51 m2 , density of air to be 1.2 kg/m3 , and the co-efficient of rolling friction to be FR =0.005. Find the distance taken to decelerate to half the terminal velocity while coasting after reaching level ground.
Answers: 2
Engineering, 04.07.2019 18:10, niicoleassssssf
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:20, cdyshaylia55
Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg
Answers: 2
Engineering, 04.07.2019 19:10, jimena15
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
What will be the terminal velocity of a cyclist moving downhill on a road with a grade of 57.8%? Ass...
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