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What happens when a person looks at a glass of water with a pencil in it?
As light hits the water it is slowed down. As the light above the water is going at 3x108 m/s, and the light in the water is going considerably slower, the image of the pencil looks like it is split in two. This is called 'refraction'.
How do you calculate coulombs law?
Coulombs law is given by the equation:F=kq1*q2/r^2 This means that the force of attration between two particles is = to k(9.11810^9) times the product of their charges divided by the distance apart sqaured. The final units are in Newtons. And in this equation k is a constant given by: 9E9 N*m^2/C^2
What is the law of universal gravition?
The Law of Universal Gravitation says that throughout the Universe, there is a force between two objects of matter,m and M, separated by a distance r. The force is mGM/r.
Is acceleration due to gravity a scalar or vector?
Acceleration is always a vector, having both magnitude and direction, and the acceleration due to gravity is no exception.Newton's law of gravitation gives the magnitude |F| of the instantaneous force vector F due to a particle of mass M on a particle of mass m as|F| = GMm/r2,where r is the separation and G is Newton's gravitational constant. The direction of the force is along the line connecting the two bodies, and it is attractive. By Newton's second law, m's acceleration vector g is given byg = F/m,which is in the same direction as the force and has magnitude |g| = GM/r2.Note the following features of the above formulae. First, the force on M due to m is equal and opposite to the force on m due to M, as required by Newton's third law. Second, g is independent of m, i.e. all test particles in a gravitational field fall with the same acceleration, regardless of their masses, an observation of deep significance in General Relativity.
The measure of the pull of gravity on a given mass?
9.81 m/s^2
What has the author K D M Snell written?
K. D. M. Snell has written: 'Annals of the Labouring Poor' -- subject(s): Agricultural laborers, History, Social conditions
The speed of light in a particular type of glass is 1.60 X 108 What is the index of refraction of the glass?
The index of refraction, or optical density, is the ratio of the speed of light in a vacuum to that in a given material. Therefore, the index of refraction for this glass is equal to c / v = (3.0 x 10^8 m/s) / (1.6 x 10^8 m/s) = 3.0/1.6 = 1.88
Who do objects that lie half in and half out of water appear distorted?
refraction -- light has a lower velocity in medium other than a vacuum, where light achieves the highest velocity (~3E8 m/s). In general, the denser the medium, the slower the speed. The actual relation is expressed as Snell's law, which relates the indices of refraction to the angles of entrance and exit relative to the normal. When light travels from one medium to a different medium, the path changes its direction right at the boundary (the angle of incidence is different from the angle of refraction), giving your eyes an illusion of the part of the object submerged in water being located a distance away from its actual location.
What is the acceleration of the system given the value of f and m?
Newton's Second Law: F=ma. Solving for a: a = F/m.
When light moves from a material in which its speed is higher to one in which its speed is lower what the ray is?
When light moves from a material in which speed is higher to a material in which its speed is lower it is REFRACTED, i.e, it is deviated from its original path, according to the laws of refraction which are as follows:The incident ray, the refracted ray and the normal to the surface at the point of incidence all lie in one plane.For any two given pair of media, the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant.The above law is called Snell's law after the scientist Willebrod Snellius who first formulated it(sin i/sin r)=constant =m. ThusWhere m is the refractive index of the second medium with respect to the first medium.for e.g.the refractive index of glass with respect to air is given asratio of -speed of light in air to speed of light in glass.(when light passes from air to glass)
Calculation of the speed of light?
I'll assume that this is the critical angle from the median to a vaccum. You use Snell's law, n1sin(x1) = n2sin(x2) where n1 = index of refraction of your median, n2 = 1 (the index of refraction in a vaccum), x1 = the critical angle (45 degrees), x2 = 90 degrees since light comes out at 90 degrees when it is shone on the critical angle. So... n1sin(45 degrees) = 1 (sin 90 = 1) n1 = 1/sin(45 degrees) n1 = 1.414... Now the index of refraction is the speed of light in a vaccum over the speed of light in the median so: 1.414... = (3.00 x 10^8 m/s) / v v = (3.00 x 10^8 m/s) / 1.414... v= 2.1 x 10^8 m/s
What is the speed of light through gelatin with a 2 degree angle of refraction?
186,282 m/second
What has the author Irvin M Borish written?
Irvin M. Borish has written: 'Outline of optometry' -- subject(s): Accommodation and refraction, Eye
How many medals did Peter Snell win?
He won 2. One in 800 m sprint and one in 400 metre sprint
What is formula for acceleration given the mass and force?
Newton's second law F=ma can be rearranged to give acceleration: a=F/m
Given the rate law shown below find the rate constant when 0.500 M of the hypochlorite ion and 0.0500 M of the iodine ion react to give an initial rate of 0.150 M s?
59 - 60.1 m-1 s-1
Given the rate law shown below find the rate constant when 0.500 M of hydrogen iodide reacts to give an initial rate of 2.95 10 4 M s?
0.00117 - 0.0012 M-1s-1
