speed = distance/time
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you calculate speed by the equation m/sec or cm/sec. This means that you would divide the distance by the time it took.
Actually to measure the speed of light is an interesting and intelligent task done by the scientists. Because the speed of light is 300,000 km in one second which is actually incredible. Out of all those, Michelson's rotating octagonal mirror method is very important. In his experiment the equation to calculate the speed of light is
speed of light = N n D. Here N = 8 as octagonal rotor is used. n - the number of rotations made by the rotor in one second. D - the total distance travelled by light.
Michelson did this experiment keeping the observatory on one mountain, Mt.Wilson and a reflector on another mountain, Mt. Antonio separated by some 35 km.
wave speed= frequency/wavelenth
Speed= distance over time. :)
Speed= distance over time. :)
The equation, for 7th. grade or for any other grade, is KE = (1/2)mv2. This is valid as long as the speed does not approach the speed of light.
The base equation for calculating the area of a rectangle is length multiplied by width.
The equation for calculating the area of a circle is A r2, where A represents the area and r is the radius of the circle.
The formula for calculating electromagnetic wave intensity is given by the equation: Intensity (Electric field strength)2 / (2 Permittivity of free space Speed of light)
By calculating the discriminant of the equation and if it's negative the equation will have no solutions
The equation for calculating the normal force acting on an object is: Normal force mass x gravity.
The formula for calculating the maximum speed of an object is: max speed distance / time.
The equation for calculating the polar moment of inertia of a cylinder is I ( r4) / 2, where I is the polar moment of inertia and r is the radius of the cylinder.
The equation for calculating the transverse velocity of a wave is v f, where v is the transverse velocity, is the wavelength of the wave, and f is the frequency of the wave.