Answer:
λ = 1.388 x 10⁻⁶ m = 1388 nm
Explanation:
We can use the Young's Double Slit experiment formula here to solve this numerical:

where,
λ = wavelength = ?
Δx = distance between adjacent bright fringes = 1.62 cm = 0.0162 m
d = slit separation = 0.24 mm = 0.00024 m
L = distance from screen to slits = 2.8 m
Therefore,

<u>λ = 1.388 x 10⁻⁶ m = 1388 nm</u>
The answer is A bc when warm, moist air from the Gulf of Mexico and cool and dry air from Canada
Explanation:
Assuming no air resistance, the package accelerates at 9.8 m/s² towards the Earth.
Answer:
Speed of the ball in position D 
<u>Explanation:</u>
Given:
Position of B=11.3
Position of D=1.9
Velocity of B=6.2
To Find:
Velocity of D
Solution:
According to the formula, Velocity is given as
=Velocity of B
=Velocity of D
g=acceleration due to gravity=9.8 m/s^2
=Change in position of B and D
Substitute the all values in the above equation we get
![=\sqrt{[38.44+(2 \times 9.8 \times(9.4))]}](https://tex.z-dn.net/?f=%3D%5Csqrt%7B%5B38.44%2B%282%20%5Ctimes%209.8%20%5Ctimes%289.4%29%29%5D%7D)
Result :
The velocity of D is