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When objects collide the totol inital momentum equals the total final momentum is what?
Wiki User
∙ 15y ago
law of conservation of momentum
Wiki User
∙ 15y ago
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What is the terminal velocity of body in a freely falling system?
Assuming the object starts at rest, it is zero. However, if the object is thrown upward or downward, its inital velocity will not be zero.
State in words how acceleration is calculated?
There are two methods, it depends on what variables you have: 1. Subtract the initial velocity from the final velocity and divide that whole term by the time (Vf- Vi)/t = a 2. Square both the initial velocity and the final velocity and subtract the squared inital velocity from the squared final velocity and that answer by two times the distance (Vf^2 - Vi^2)/2d = a
What is a solution at equilibrium?
equilibrium means the rate of forward reaction = rate of backward reaction... there are three types of equilibrium 1. amount of products > amount of reactants 2. amount of products = amount of reactants 3. amount of products < amount of reactants
What part of the flame is the coolest?
The hottest flame color is white, with the absolute temperature dependent on the fuel/mixture burned. Flame color depends on several factors, the most important typically being blackbody radiation and spectral band emission, with both spectral line emission and spectral line absorption playing smaller roles. In the most common type of flame, hydrocarbon flames, the most important factor determining color is oxygen supply and the extent of fuel-oxygen "pre-mixture", which determines the rate of combustion and thus the temperature and reaction paths, thereby producing different color hues. Generally speaking, the coolest part of a diffusion (incomplete combustion) flame will be red, transitioning to orange, yellow, and white the temperature increases as evidenced by changes in the blackbody radiation spectrum. For a given flame's region, the closer to white on this scale, the hotter that section of the flame is. The transitions are often apparent in TV pictures of fires, in which the color emitted closest to the fuel is white, with an orange section above it, and reddish flames the highest of all. Beyond the red the temperature is too low to sustain combustion, and black soot escapes. A blue/green colored flame only emerges when the amount of soot decreases and the blue emissions from excited molecular radicals become dominant. Specifically, the blue color arises due to emission of excited molecular radicals in the flame, which emit most of their light well below ~565 nanometers in the blue and green regions of the visible spectrum. Yes it is true that white flame is the Hottest but regarding the spectrum of heat we are totally confused.In one direction you are right that the Red is cooler than the Orange , Orange flame is cooler than Yellow and Yellow Flame is cooler than White Flame,But on the other hand the Cyan Flame is cooler than the White , Blue is cooler than Cyan and Violet Flames are cooler than the Blue Flames.Green Flames are the mixture of Cyan and Yellow Flame so the total heat will be in between .It is also true that if you see white flame you will never see Green and if you see Green you will never see White.This is the reason in Black Body radiation you are able to see Green but unable to see White.The White should be placed in between Cyan and Yellow Flame and Green flame is also in between Cyan and Yellow as Green is formed due to the mixture of Cyan and Yellow.You will surprise to know that the white light is not splitting into spectrum,it is the Black color( Darknes /No Light ) around the White light, which is creating spectrum.Please go through my answer in wikianswer regarding "white light splits into seven colours". Thus Black is the coolest one. Here one should know that the extreme white flame is invisible to eyes as the cells of retina are unable to perceive it and you feel darkness around you and same thing is happening with the ultra violet and X rays and Gamma rays.Gamma Rays are nearest to the ultra white flame.Ulra violet rays are not the rays beyond violet rays of spectrum.Ultra violet rays are in between the Cyan and the White flame.You can see the violet flame above the Cyan flames after a gap ( above Cyan flames there is a gap for blue,but here blue is not visible / formed ) ,daily in the gas burner of your Kitchen. It is also true Blue star are hotter than the Red star .To prove make different colored blocks in your computer moniter and convert them into gray scale and now analase them.The color which is nearer to the white scale is the hotter color in terms of Thermal energy and those are nearer to the black scale are cooler one. You will find that the Green is hotter than the Red and Blue ,but light Blue is hotter than the Red.Dark Blue is cooler than the Red. In Human, Psychlogy is involved with the color therefore the meaning of the color changes but still it can be explained.Red is related to Blood so Red is considered as Furious color.White stands for Purity..no dust ,no particle ,no color means pure / Clean. Red , Blue are best visible color in white light which you compare with Black in White.Thus in few countries the Bridal dress is Red so that the Bride should be visible more in the crowd ( and crowd is not wearing Red ).You will find that for the vision the contrast is followed everywhere.
What is the definition of a initiative?
an inital observation is the basic and main observation of the experiment
What does the inital f stand for in Stephen f. Austin?
Stephen Fuller Austin
What is the definition of a initial observation?
an inital observation is the basic and main observation of the experiment
Who was the colonial leader who was responsible for the inital success of Jamestown?
John Smith ~NOVANET~ PS3
When comparing q to ksp an inital q value greater the ksp indicates that what?
A precipitate will form
Which phase of patient assessment includes recognition and management of life threatening conditions?
inital assessment
Defining a variable syntax?
[storage-class] [const] [type modifiers] type name [= inital-value] ;
Can you have a nonzero average velocity?
Yes. As long as the inital and end positions are different, you will have a nonzero average velocity.
Which is greater in positive acceleration initial or final velocity?
inital velocity (u) should be less
What happened to movie2k?
Movie2k is now up and running after its inital closure. but you can watch online movies on moviezfever.com
Why then doesn't earth fall toward us when we jump?
It does, but because the Earth is so much more massive than a person, the movement is extremely small, far too small to be measured. Action and reaction are equal and opposite, and momentum is conserved when you jump - the sum of your momentum and the Earth's. Supposing you have a mass of 70 kg and you apply a jumping force of 140 kg or 1372 Newtons for 0.1 seconds, an impulse of 137.2 Newton-seconds. Impulse equals change of momentum so your momentum is Mv = Ft or in this case 70 x v = 137.2 and your upward speed is initially 1.96 metres per second. For the Earth the same applies and Mv = Ft tells us the the Earth's downward speed initially is given by 6E21 x v = 137.2 so that the Earth's inital speed is 2.3E-20 metres per second - assuming that the Earth is totally rigid! That is a displacement that is far too small to be detected. NB the notation 6E21 is an alternative that means six times ten to the power 21 on web sites that fail to provide the normal subscripted notation.
What level of protection will you need to work with or near contaminated materials during the inital phase of the ccor?
Mopp 4
