Answer:
λ = 5.65m
Explanation:
The Path Difference Condition is given as:
δ=
;
where lamda is represent by the symbol (λ) and is the wavelength we are meant to calculate.
m = no of openings which is 2
∴δ= 
n is the index of refraction of the medium in which the wave is traveling
To find δ we have;
δ= 
δ= 
δ= 
δ= 
δ= 
δ= 
δ= 82.15 -73.68
δ= 8.47
Again remember; to calculate the wavelength of the ocean waves; we have:
δ= 
δ= 8.47
8.47 = 
λ = 
λ = 5.65m
The food you eat every day provides the nutrients you need to survive. These food components include the macronutrients – protein, carbohydrate and fat – that offer calories as well as play specific roles in maintaining your health. Micronutrients, such as vitamins and minerals, don’t act as an energy source but do serve a variety of critical functions to ensure your body operates as optimally as possible.
Answer: weight on Jupiter = 869.75 N
mass on Earth = mass on Jupiter = 35.5 Kg
Explanation:
W = mg
W = weight
m = mass
g = gravitational acceleration [ on the Earth, g₁ = 9,8 N/kg ]
On the Earth,
G₁ = m x g₁ = 347,9 N
On the Jupiter,
G₂ = mg₂
mass on the Earth = mass on the Jupiter !
m = G₁ : g = 347.9 N : 9,8 N/kg = 35.5 kg
G2 : G1 = 2.5
G₂ = 2,5 G₁ = 2,5 x 347.9 N = 869,75 N
Answer:
a) when the length of the rope is doubled and the angular frequency remains constant: The power increases by factor of two
b) when the amplitude is doubled and the angular frequency is halved: The power is the same
c) when both the wavelength and the amplitude are doubled: The power increases by a factor of 8
d) when both the length of the rope and the wavelength are halved: The power increases by factor of two
Explanation:
For a sinusoidal mechanical wave (Transverse wave), the time-averaged power is the energy associated with a wavelength divided by the period of the wave.

where;
A is the Amplitude
ω is the angular frequency
λ is the wavelength
a) when the length of the rope is doubled and the angular frequency remains constant
L = λ/2, λ = 2L
The power increases by factor of two
b) when the amplitude is doubled and the angular frequency is halved

The power is the same
c) when both the wavelength and the amplitude are doubled

The power increases by a factor of 8
d) when both the length of the rope and the wavelength are halved
L = λ/2
when both are halved
L/2 = λ/4, λ = 2L
The power increases by factor of two
Vf=√30²+100²
Vf=104 m/s
|Ф|=tan inverse of |100÷30|
Ф= 73 degrees
Therefore the resulting velocity of the airplaine is 104 m/s [ 73 degrees N of W]