C) 108 m/s
given
c = 0.75
rho = 1.2 kg/m^3
A = 5*10^-5 m^2
m = 27 g = 27*10^-3 kg
we know,
terminal speed, v = sqrt(2*m*g/(rho*A*c))
= sqrt(2*27*10^-3*9.8/(1.2*5*10^-5*0.75))
= 108 m/s
18. Jonah throws a rock off the Empire State Building, and it quickly reaches terminal velocity. Find the terminal velo...
DNA Electrophoresis: a) The DNA reaches terminal velocity quickly during electrophoresis and stays in that state. Solve for the terminal velocity for the viscous and drag force case. b) Which of these terminal velocities depend on the size of the DNA molecule? How does the terminal velocity change with molecule size? ( does terminal velocity go up or down as the size gets bigger?) c) Based on your calculations is the resistive force on a DNA molecule during electrophoresis best...
A spherical raindrop 3.3 mm in diameter falls through a vertical distance of 4000 m. Take the cross-sectional area of a raindrop ,drag coefficient 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) Calculate the speed a spherical raindrop would achieve falling from 4000 m in the absence of air drag 280 m/s (b) What would its speed be at the end of 4000 m when there is air drag? 1.091 What...
A spherical raindrop 1.9 mm in diameter falls through a vertical distance of 4150 m. Take the cross-sectional area of a raindrop = πr2, drag coefficient = 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) Calculate the speed a spherical raindrop would achieve falling from 4150 m in the absence of air drag. _________ m/s (b) What would its speed be at the end of 4150 m when there is air...
A 11-2 A rock with a diameter of 20 cm is dropped from a very high cliff. Using the 01pts drag-force equation F-(0.25) density of airXcross-sectional area)v2, estimate the time it will take for the rock to reach terminal velocity. The density of air is about 1.2 kg/m3. Submission History Incorrect. Your answer: "5 min". Score: 0/0.1 You may resubmit below: OA. 30s 5 min C. 30 min OD. 2 hours ов. 11-3 A wrench of mass 1.5 kg is...