Homework Statement
Afluid with a viscosity of 9.1 x 10-4 Pa.s and density 1.1 g/cm3 flows through a tube with an inner diameter of 10 mm and fills a 10 mL container in 29 s. What is the Reynolds number for this flow?
Homework Equations
I am assuming its this equation for a tube...
Homework Statement
Assume Poiseuille's law applies. If h = 37.50 cm, L = 20.22 cm, d = 0.830 mm, how many seconds will it take to collect 10 mL of water? Assume that the viscosity of water is 0.00100 Pa s, the density of water is 1000 kg/m3 and the acceleration due to gravity in the lab is...
Homework Statement
If you have an object, say, falling off a cliff
and you have initial velocity (Vox) can you assume that its Vf would be zero in both x and y if it doesn't state or ask for a final velocity before impact?
eg) a car drives off a cliff and the site of impact is 32 m from...
Ok, I understand what your saying, but how do I do this with so many missing variables? if 1.5s = dt + dt...but I don't have either d or t for the stone or sound. or can I somehow use: total T = 1/2 at2(squared) + something with speed of sound...Its just on the tip of my brain! or is my logic...
Homework Statement
a stone is dropped from rest into a hole. the speed of sound is 343 m/s in air. the sound of the stone striking bottom is heard 1.5s after the stone is dropped, how deep is the hole?
Homework Equations kinematics equations
The Attempt at a Solution
not a...
Homework Statement
A ball is dropped from rest from the top of a cliff that is 24 m high. From ground level a second ball is thrown straight up at the same instand theat the first ball is fropped. The initial speed of the second ball is the same as that with which the fist ball hits the...