Why does objects painted black dry faster than those white?
Black absorbs more energy than white- this extra energy could explain the faster drying time.
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Yes, molecules of a gas would diffuse more rapidly than those of a liquid. Since between molceules in a liquid there are stronger forces of attraction in a gas move faster. The reason why gas diffuses faster than liquid is because in liquid, there are many water molcules attacted together. In gas, i…ts just alot of H2 or O2, but none are connected because in both,with the exception of H2 beucase it has Hydrogen Bonding Properties, the Octect Rule is satisfied and they have no need to react with anything else. Because of this, water must first be broken down to individual molecules of H2 in order to diffuse. (MORE)
In the absence of other factors, such as air resistance, the weight of an object does not affect its rate of acceleration in a gravitational field.
It is believed that wool does dry faster than cotton. Many thinkthat wool does not absorb moisture like cotton does.
Because black color is travel and heat more then any color and more then white.
Omg Answer The Question please just Someone Answer it Please I Need This Answer So Someone Hurry I Might Fail Science Im An Idiot -Gir !?
All objects in the same gravitational field fall at the same rate, or at least accelerate to their terminal velocity at the same rate regardless of their mass. This was demonstrated by a legendary experiment by Galileo (1564-1642) when dropped two cannon balls of different sizes from the Leaning Tow…er of Pisa - both struck the ground at the same time. (MORE)
Depends which direction the object is travelling in the water. If the object is on top of the water, the lighter object would befaster. If the object is sinking in the water, the heaver object would befaster.
I have tried a blowdryer. Mine has a cool blast button that just pushes cool air through. This helps but not really enough to make a huge difference. The best thing is just to wait. There are some sites that recommend baking it at a very low temperature (not over 130 degrees F) and some that recomme…nd putting two 75 or 100 watt bulbs over the painting to help it dry more quickly, but oils really don't ever dry. Most sites I've seen recommend six months before you varnish to allow the painting to fully dry. Good luck and if you find something that works, let the rest of us know! (MORE)
I don't think that's true. Typically a white person's hair is straighter than a black person's hair so the change in length is more obvious when it's growing out. Also, black peoples' hair is thicker, so growing it may take more time. It doesn't. All people's hair gets to a certain point when it s…tops growing at a certain length. A white person can have hair past their shoulders, and a black person can grow hair upwards of more than a foot long. (MORE)
In my opinion it's all about the genes, but for example Indian peoples hair growth rate i think is the fastest of all the races. But black people hair grows as fast as it break so usually they think it's not growing. Black people with dreadlocks hair can grow to the ground. But use of chemicle usual…ly is the main culprit for slow hair growth in Black people. (MORE)
The following formula allows you to calculate the force exerted by the Earth on an object: F=km/(r*r). F is the force the Earth's gravity exerts on the object, k is the mass of the Earth times Sir Isaac Newton's constant, m is the mass of the object, and r is the distance from the object to the cent…er of the Earth. The force of gravity is proportional to the mass of the object-the greater the mass, the greater the force. Newton's second law of motion tells us about the acceleration an object feels when a force acts on it. Acceleration is the rate at which something speeds up and so tells us how fast it falls. Newton's second law tells us that the acceleration of an object due to a force is equal to the force exerted on the object divided by the mass of the object: a=F/m. (We'll ignore air resistance here.) According to this equation, an object's acceleration is proportional to the force exerted on the object-the greater the force, the greater the acceleration. But the acceleration is also inversely proportional to the mass of the object-the greater the mass, the smaller the acceleration. We saw above that a greater mass means a greater force of gravity, but that effect is balanced by the fact that a greater mass means a lesser acceleration. The masses cancel out completely, and objects of any mass will fall at an equal rate. For objects near the Earth's surface the rate is about 9.8 meters per second per second. This means that if you let anything fall from a standstill, after one second it will be moving at 9.8 meters per second (MORE)
A lighthouse may be painted black and white to help it stand out more, so it can be seen during the daytime by ships at sea.
Because there is more salt in the air from the sea winds; And we know that the mixture of salt and water makes metal rust.
Black men generally have higher testosterone levels, and have a greater percentage of fast twitch muscle. There are some fast white men too though. Christophe Lemaitre ran 9.98.
The Sun doesn't exactly "attract" black objects.\n. \nBlack objects absorb all the light and heat radiation that falls on them, and hence get heated to a greater extent. \nWhite objects, on the other hand, reflect almost all of the light and heat and hence, get heated to a much smaller degree.
Most of sunlight is in the visible range of the spectrum. A black object by definition absorbs all visible light, while a white object reflects all visible light. The black object absorbs most of the energy from sunlight, turning it into heat.
Generally dark colors dry slower then light colors because of the high amount of pigment in them.
yes objects painted black dry faster than those painted white because the black absorbs more heat than the white
Almost any paint will dry faster when it's warmer and if there's air circulating. The heat speeds up both diffusion and evaporation, and the circulating air keeps solvent vapor from building up near the surface and slowing the rate of evaporation.
Heating paint increases the rates of both diffusion and evaporation, so paint dries faster when it's warmer.\n. \nSome places that sell paint smear a little on the lid to show the color after it's been mixed. They will often use a heat gun ... sort of an industrial strength hair dryer ... to dry th…e splotch of paint quickly. (MORE)
Faster than what?. The answer is probably yes - black objects both absorb and radiate heat faster than objects of other colours, but surface finish (glossy or matt) also has an effect.
the answer is no; the speed of light is the universal speed limit, nothing travels faster
If and when that happens, it happens only because of the effects of air resistance. Considering only the effects of gravity, the answer is no . All objects accelerate at the same rate regardless of mass/weight. At equal times after the drop, all objects are traveling at the same speed. . It's m…aybe the most famous scientific experiment, Galileo Galilei's dropping objects from the leaning tower of Pisa in order to prove that all objects fall at the same rate, whatever their mass. . In his Two New Sciences (1634) Galileo discusses the mathematics (first to apply mathematics for physics analysis) of a simple type of motion what we call today uniform acceleration or constant acceleration. Then he proposes that heavy bodies actually fall in just that way and that if it was possible to create a vacuum, any two falling bodies would travel the same distance in the same time. On the basis of this proposal, he predicts about balls rolling down an inclined plane, Finally, he describes some inclined plane experiments corroborating his theory. . Galileo used inclined planes for his experiment to slow the acceleration enough so that the elapsed time could be measured. The ball was allowed to roll a known distance down the ramp, and the time taken for the ball to move the known distance was measured. The time was measured using a water clock. . Galileo showed that the motion on an inclined plane had constant acceleration, dependent only on the angle of the plane and not the mass of the rolling body. Galileo then argued that free-fall motion behaved in an analogous fashion because it was possible to describe a free-fall motion as an inclined plane motion with an angle of 90Â°. Using Newton's laws, we can prove Galileo's theory by decomposing the gravitational force, acting on the rolling balls, into two vectors, one perpendicular to the inclined plane and one parallel to it. http://www.physics.smu.edu/~ryszard/1313fa98/1313-Incline_.PDF . Following his experiments, Galileo formulated the equation for a falling body or an object moving in uniform acceleration: d=1/2gt2. . The is some evidence shows that such experiments were performed by various scientists and experimenters preceding Galileo's work about falling bodies and by this disproving Aristotle's assertion that heavier bodies fall faster than light ones. . As early as 1544, the historian Benedetto Varchi referred to actual tests which refuted Aristotle's assertion. . In 1576, Giuseppe Moletti, Galileo's predecessor in the chair of mathematics at the university of Padua, reported that bodies of the same material but different weight, as well as bodies of the same volume but different material, dropped from a height arrived at the Earth at the same time. . In 1597 Jacopo Mazzoni, of the University of Pisa, reported that he had observed objects falling at the same speed regardless of weight and pieces of an object descending at the same rate as the whole. . The most notorious of those is Simon Stevin that in 1586 (3 years before Galileo) reported that different weights fell a given distance in the same time. His experiments, with the help of his friend Jan Cornetts de Groot, were conducted using two lead balls, one being ten times the weight of the other, which he dropped thirty feet from the church tower in Delft. from the sound of the impacts they concluded that the spheres fell with the same speed, not as stated by Aristotle. Stevin is regarded by many as the first one to perform falling bodies experiments. . Experiments to demonstrate the phenomenon. . 1. Hold on the tip of the fingers of different hands a coin and a paper disc about one meter or more above the floor. Drop both of them simultaneously. The coin will reach the floor before the paper disc. From this experiment is possible to conclude mistakenly that heavier objects fall faster. . 2. Mount the paper disc on the coin and drop them together. Both objects will reach the ground at the same time. The meaning of this experiment is that not the amount of mass causes falling bodies to fall faster or slower but the resistance/friction of air because air resistance is applied here only to the coin and not to the paper disc and by that we can infer that air resistance and not the amount of mass prevented the paper disc from falling faster - the same as the coin. . To exclude the possibility that the coin and the disc of paper attract each other you can show that they do not stick together in any position. . Experiments are from: Weiss Moshe, Physics by Experimental Demonstrations, vol II, Jerusalem: Rubin Mass, 1968, pp. 208-209 . (MORE)
depends how you paint them and what chemical they contain whether they are different companies
Cotton takes a longer time to dry than nylon due to its waterretention capacity. Nylon does not hold water very well and canalso have the effect of repelling water.
yeah they are its so obvious. . Well, not so obvious - the first man in the world to run a sub-four-minute mile was a white Briton.
snakes are scary and kill you so stop worrying about color and speed and run away form any snakes you see
Not in a vacuum. All objects, regardless or mass, density, or whatever, fall with the same speed in a vacuum. Some objects may appear to fall more slowly than others (example, a flat piece of paper or a feather vs. a rock), but this is usually due to air resistance. All objects, when falling on eart…h, accelerate towards the ground at a rate of 9.8 meters/seconds squared. (MORE)
No, because white chocolate is not really chocolate.White chocolate isn't a natural product. Because white chocolate has no cocoa solids from the chocolate liquor, the FDA doesn't classify it as chocolate. However, the organization is working with chocolate manufacturers to establish a standard defi…nition for white chocolate. Until a standard is published, check labels and beware of "white chocolate" that contains vegetable fat instead of cocoa butter. I would say that white chocolate would dry faster because it isn't in fact natural but man made!! (MORE)
It'll rust away faster, but (assuming they're made from the same alloy) won't start to rust faster.
That is a steriotypical statement. Just because you are of a certain race, does not make you faster.
well the hypothesis tells us that black coffee is naturally hotter than white coffee but the actual answer to this question is that white coffee cools faster because milk has its own temperature and will definitely make a difference.
Black people usually have curly hair, which means that each strandwill kinda roll up on itself. So if you took the hair, pulled itstraight and measured it, it'd probably be about as tall as a whiteperson's hair. But as it's curly, it'll look shorter.
Put it in the microwave for 10-30 seconds, but make sure whatever you put into the microwave is not going to melt or catch on fire. Make sure to have a parent know what you are going to put into the microwave before you do.
When heavy objects roll down something, fricition is involved. Friction is made by the rubbing of one thing against the other. Try rubbing your hands together reallly fast. Do your hands feel warm? Heavy objects have more friction, which slows down the heavy object. Lighter objects have less frictio…n which cause it to run faster. (MORE)
while you're drying your hair, do ten seconds of hot wind then ten seconds of cold wind. do this repeatedly until its almost dried.leave comments on a next paragraph plz!:P
The White House will be painted black, when Alaska becomes a dark land with no snow. Approximately 19 years, 7 months and 23 days. Also, the White House is actually located in Alaska.
no, because polyester absorbs water but nylon doesn't. so the absorbency help polyester to dry faster. YAY! I'm awesome! penguins will soon take over ice cream!
Yes, much faster,and if you use a good primer first, your 'coverage' is as good.
Yes. It has to be so, since it would otherwise be possible to violate the Second Law of Thermodynamics!
No- from my experience with drip-dry cottondrying on a line. In fact, pants may dry a little slower- the waist area takes longer, it seems. Rayon and polyester dry faster than cotton regardless whether they are shirts or pants.
Yes because black absorbs more heat than white therefore making the black one get more sunlight quicker so it dries quicker.
Not specifically. Something black, however, will absorb radiant energy faster than something white, so that would make it seem that black (materials) melt faster than white (materials).
The colour is really irrelevant, what matters more in drying time is the base of the paint. In general, a matt white primer will dry faster than anything else.
Primer will dry faster in the direct sun, Sometimes too fast in fact. Check your label instructions or manufacturer's technical data sheet to ensure that the air, paint and surface temperatures all are within the proper range, usually 50 to 90 degrees Fahrenheit, before painting the surface.
Actually, the ability to run depends on the leg muscles. People with shorter leg muscles (not necessarily the length of the leg itself) have a far greater take-off speed and fare better at short distances doing sprints. Their muscle endurance is very limited. The long muscled legs tend to provide… long distance endurance. They are not very fast at the beginning of a race, but their endurance is far superior. So, it's not the race of the person, entirely, but the muscle structure of their legs that matter. (MORE)
The difference is due to inertia. Inertia is the resistance to a change in motion (acceleration). A more massive object will have greater inertia, and therefore a greater resistance to a change in motion, resulting in a slower acceleration. A less massive object has lower inertia, and therefore less… of a resistance to a change in motion, resulting in a faster acceleration. (MORE)
What was artistic technique that made distant object smaller than those in the foreground of the painting?
Perspective is the name of the artistic technique that makesdistant object appear smaller than those in the foreground of thepainting. Filippo Brunelleschi, an Italian artist, is known forhaving pioneered linear perspective.
i don't know what to do but don't use hot air it would add moistness.
some objects faster than the others because its due to the movement of the earth.... hahah joke lang :))