Floating Definition and 261 Threads

Looking to design a floating silhouette for aerial small arms training. There don't seem to be any companies that provide such a product so we have to design our own. A few of our ventures have failed and looking for assistance from those far smarter than I. Stipulations: We use 36" high...

A hollow brass tube (diameter = 3.23 cm) is sealed at one end and loaded with lead shot to give a total mass of 0.219 kg. When the tube is floated in pure water, what is the depth, z, of its bottom end? through manipulation of some laws i have broken it down to this stage: z = m/(πr2ρ)...

A styrofoam slab has a thickness of 12.6 cm and a density of 470 kg/m 3 . What is the area of the slab if it floats just awash (top of slab is even with the water surface) in fresh water when a 65.7 kg swimmer is aboard? Answer in units of m 2 . im trying to use pressure=density of...

Hi, I need help with a project on Bernoulli's floating ball. I wanted to prove with the use of Bernoulli's equation that the the velocity or pressure in one side of the equation (the low pressure area) is lower in pressure or higher in velocity. This is what I have so far: Using: P1 +...

Hi, I'm doing a project - Bernoulli's floating ball and i am trying to explain it using bernoulli's equation: P1 + 1/2pv1^2 = P2 + 1/2pv2^2 Where P1 represents the High pressure areas surrounding the jet air and the ball (atmospheric pressure) of which I have managed to obtain its...

A hollow steel tube (diameter = 3.84 cm) is sealed at one end and loaded with lead shot to give a total mass of 0.161 kg. When the tube is floated in pure water, what is the depth, z, of its bottom end? :smile:

not sure why i keep getting it wrong....maybe caz i misunderstood some concept or something. anhyoo...here is it: A cork ball of mass 5.20 g is placed between two very large horizontal plates. The bottom plate has a uniform charge density of +0.22E-06 C/m2, whereas the upper plate has a...

Oil Floating above water...? Someone, please first answer this qn... Is oil denser than water? If yes, pls proceed... When an oil spill occurs at sea, why would the oil float above the water? If oil is denser than water, wouldn't oil be sinking to the bottom of the sea? Could anyone...

okay, here's the problem as stated: A rectangular boat is 2m long and 0.8m wide and 0.2m high and weights 75kg. If the boat is in fresh water, find (a) the amount that it will sink into the water when Squink (98kg) jumps in, and (b) the number of 2kg fish he can catch before the boat sinks...

Does anyone know how to calculate the angle at which the box will tilt, if the center of mass is above the center of buoyancy? Suppose we have a box with the dimensions: W:15.4 inches L:27.4 inches H:27 inches With the weight 2796,5 grams Center of mass is 8 inches from the bottom of the...

I'm really fired up about physics now. But I can't puzzle out the following: Q. When you float in fresh water, the buoyant force that acts on you is equal to your weight. When you float higher in the high-density water of Salt Lake, the B.F. that acts on you is actually: 1) greater than your...