2007-11-06 14:48:06 · 8 answers · asked by nene 1 in Science & Mathematics ➔ Engineering
add mass or decrease volume of the object
decrease mass or increase volume (at constant mass) of the fluid.
increase the normal force
- by increasing gravity
- by mounting a rocket on top that thrusts down
by reducing the gibbs free energy surface of the fluid with some variant of a surfactant so the surface tension is no longer a significant contributor to buoyant force.
By oscillating, drilling, or jetting, it so that it pushes the water out from under itself faster than gravity can put the water back.
2007-11-06 14:55:52 · answer #1 · answered by Curly 6 · 1⤊ 0⤋
Reduce the density of liquid. Warming up the liquid might help, but then how do you warm up the liquid without warming up the floating object. Or increase the density of the object. You can cheat by placing something heavy on top of it, because their density "together" will be greater.
Make the water under the object move in one direction. Bernoulli's principle will sink it. (That is why, when motor boats go near the bankment, they must reduce speed, or else they run the danger of being "sucked" towards the bankment )
2007-11-07 03:29:43 · answer #2 · answered by Snowflake 7 · 0⤊ 0⤋
it depends on what liquid its floating on.
as explained above, the density of the object must be greater than the density of the liquid for it to sink(Archimedes principle)
to make something that floats, sink, one would need to change the properties of volume and mass to exceed the density of the liquid. Why volume and mass? Because density = mass divided by volume.
2007-11-07 00:01:35 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Blow air in the water under the object. The air decreases the density of the water and the object will sink.
2007-11-07 00:19:08 · answer #4 · answered by habu-e6 1 · 0⤊ 0⤋
do you know bernoulli's principle of bouyancy?
Oops, I mean Archimedes principle.
bouyant force is equal to the weight of the volume of liquid displaced. To make something that floats sink, its density must be increased, so that for the same displaced volume, it weighs more.
2007-11-06 23:20:27 · answer #5 · answered by Kevin 5 · 0⤊ 0⤋
Another alternative to increasing the objects density is to decrease the density of the fluid. One way to do this would be to put a fish tank bubbler type system in the fluid.
2007-11-07 10:51:02 · answer #6 · answered by trent 3 · 0⤊ 0⤋
You'd have to make it so the mass or density is greater than water, which is 1.0 g per cm3.
2007-11-06 22:56:08 · answer #7 · answered by Rich 3 · 0⤊ 0⤋
Put a hole in the bottom.
2007-11-07 00:44:38 · answer #8 · answered by MantraTantric SadhuBaba 3 · 0⤊ 0⤋