Homework Statement
A bubble of air which is 1 mm in diameter is released without initial velocity in the
volume of glycerol at room temperature. Describe the motion of the bubble as a
function of time assuming that its diameter remains unchanged. Note that friction
force acting on the...
lol i did not get the joke, how slow am i XD.
I also have another question. Doesnt the surface area available for the air to push up an important factor in calculating the Archimedes force? Because air has to be able topush up forom the bottom. Analogously, if i were to lie flat on the earth...
Homework Statement
Calculate the Archimedes' force due to air on your body.
Homework Equations
F = pVg
The Attempt at a Solution
This problem is more so conceptual, I believe, than calculation-based. My first thought was that the buoyant force equals to the weight of the air...
Homework Statement
A whimsical piece of furniture has the base shaped like a star.
Formulate the condition in terms of the location of the center of mass of
the object that the piece would not topple over. A sketch would be
helpful.
The Attempt at a Solution
Can someone help me...
Homework Statement
A bead of mass m slides without friction on a smooth rod along the x-axis. The rod is equidistant between two spheres of mass M. The spheres are located at x=0 , y= \pm a.
a. Find the potential energy of the bead.
b. The bead is released at x = 3a with an initial...
Homework Statement
a A sportscar can accelerate uniformly to 120 mi/h in 30s. Its maximum braking rate cannot exceed 0.7g. what is the minimum time required to go 1/2 mi, assuming it begins and ends at rest?
Homework Equations
I drew a graph of v(t) vs t. where the initial acc. goes up...