c = λ × f
where c is speed of light (c = 299 792 458 m/s) ,
λ is wavelenght & f is frequency
f = c / λ
we have λ=455 nano meters
then :
f=659 THz and the colur is blue-violet
Note:
1 terahertz (THz) = 103 GHz = 106 MHz = 1012 Hz
1 watt-second = 1 joule...746 watt-seconds = 746 joules(746 watts is an interesting number, and I'm curious to know how it wasselected to be the number in the question. 746 watts = 1 horsepower.1 horsepower = 746 joules of energy per second.The number is easy to remember: The mainsail on the Santa Maria developed2 HP in a fresh breeze during Christopher Columbus' first voyage in 1492.)
746 watts is equal to 1 horsepower. Horsepower is a unit of power that measures the rate at which work is done, and 1 horsepower is equivalent to 746 watts.
In theory one horse power equals 746 watts. They are both basic measures of power. A 1 HP motor however draws more than 746 watts because to give a mechanical output of 1 HP/746 watts at the shaft, the motor has to draw more than 746 watts of electric power to cover losses in caused by resistance in the windings and the iron core of the motor, and friction in the bearings. A typical efficiency for a motor would be 90% so that the electric power used would be 829 watts. <<>> For clarification in all electrical calculations regarding horsepower, 746 watts per horsepower is used.
One HP is about 746 W. So 647 / 746 = 0.9 HP
No - just different units. (1 hp = 746 watts)
the equation, c=fλ can be rearranged to find the wavelength - λ = c/f Since visible light is an EM wave, its speed is 3x108 ms-1. 748 nanometers to meters is 748x10-9 So, wavelength can now be calculated: λ = 3x108 / 748x10-9
11 kW is approximately 14.8 horsepower (HP) at 50 Hz frequency.
746 is even.
746 in exponential from
Start with the prime factorization: 746 = 2 X 373. Since both of numbers are prime numbers, the only numbers that go into 746 are {1, 2, 373, 746}
746 * 63 = 46,998
439 + 746 = 1185
1041
1573 746 +827 1573
1746
746 multiplied by 5 is 3,730.
divide 746 by 60 (minutes in an hour) to get that 746 = 12 hours and 26 minutes.