By Archimedes' Principle, a floating body displaces a volume of fluid whose weight is exactly equal to its own.
Having height = 10cm
Wobject = Volumedisplaced*Densityfluid = SA*Height*rho
Suppose it is water with rho = 1g/cm3, SA = 1cm2
Wobject = 10cm*1cm2*1g/cm3 = 10g.
Just make sure your units are correct.
Since the object is floating (except for the amount that sinks in the water and displaces 10 cc ) the upward bouyant force of the water must equal the object's weight. The upward bouyant force of the water is found from Archimedes' principle: Water will exert an upward bouyant force equal to the weight of the displaced water. Water has a density of 1gram/cc so 10 cc of water equals 10 grams or .01 kg. The weight is mg , which is .01 x 9.8 = .098 Newtons. So the object weighs .098 N which in English units is approximately .4 ounces.
The weight of the object cannot be determined with the given information. The density of the floating object must be determined in order to solve for its weight. According to Archimedes' principle, the weight of an object in a fluid is equal to the quotient of the density of the object and the density of the fluid multiplied by the weight of the fluid displaced.
Assuming that the density of water is equal to 1g/cm3, then,
(The Weight of the Object) = (The Density of the Object) x 10
10gms
a green liquid
Because that piece of charcoal is lighter that the water, so it floats.
The weight of the substances are largely immaterial. What matters is the density. Assuming fresh water to have a density of 1.0 anything with a lighter density will float in it. For example, oil generally has a density of about 0.8, so it floats in water. Concrete has a density of about 2.4, so it sinks. http://physics.about.com/od/fluidmechanics/a/commondens.htm
what object will not sink or float but will stay suspended in the middle of water
Whether an object floats or not depends on its density. Density is the amount of mass in a volume, or mass divided by volume. If and object's density is less than that of water, it will float in water, and if an objects density is higher than that of water, it will sink in water. raw material (fishballs will sink down);but it will floats when it is cook. why
the amount of density
An object floats in water if the object's density is less than water's...Conversely, an object will sink if it's density is greater than that of water.
If an object floats in water it will also float in the much denser mercury
You can push it under water / under the liquid's surface, and measure the displacement of liquid.
PLANKTON
something lighter than water
It is lighter than water
a green liquid
Look at the LAST WORD of the question, they switch it sometimes if it is: Underwater than it is TRUE, If it's Surface of the water than it is FALSE ~
The object floats in the water.
Yes. A floating object displaces its own mass in water.
If the object floats it is less dense than water, if it submerges it is denser than water.