That's the wave's ' period '.
It's the reciprocal of the wave's frequency.
Answer:
The wavelength is 
Explanation:
From the question we are told that
The thickness is 
The refractive index of the non-reflective coating is
The refractive index of glass is 
Generally the condition for destructive interference is mathematically represented as

Where
is the angle of refraction which is 0° when the light is strongly transmitted
and n is the order maximum interference
so

at the point n = 1



at n =2




Now we know that the wavelength range of visible light is between

So the wavelength of visible light that is been transmitted is

Calculate the pressure due to sea water as density*depth.
That is,
pressure = (1025 kg/m^3)*((9400 m)*(9.8 m/s^2) = 94423000 Pa = 94423 kPa
Atmospheric pressure is 101.3 kPa
Total pressure is 94423 + 101.3 = 94524 kPa (approx)
The area of the window is π(0.44 m)^2 = 0.6082 m^2
The force on the window is
(94524 kPa)*(0.6082 m^2) = 57489.7 kN = 57.5 MN approx
All you need to know is that velocity is the derivative with respect to time of position.
Therefore: ds/dt = -32t +10
To know the velocity at t=2s you just need to plug t=2 for t in the equation above.
Answer:
Explanation:
The distance of searchlight will act as radius R and velocity of car may be supposed to be tangential velocity v . We are required to calculate angular velocity ω .
v = 80 ft /s
R = 3000 ft
ω = v / R
= 80 / 3000 = .027 rad / s
For angular acceleration the formula is
angular acceleration α = a / R
a is linear acceleration = 15 ft / s²
α = 15 / 3000 = .005 rad / s².