Answer:
The distance between their eye and the ceiling is 33.06 m.
Explanation:
Given that,
The ceiling of a large symphony hall is covered with acoustic tiles which have small holes that are 4.35 mm center to center, D = 4.35 mm
Diameter of the eye of pupil, d = 5.1 mm
Wavelength, 
We need to find the distance between their eye and the ceiling. Using Rayleigh criteria, we get the distance as follows :

So, the distance between their eye and the ceiling is 33.06 m.
Distance = 1/2*gravity*velocity^2
<span>So plugging: 1/2 * 9.8 * 25 = 122.5units
and is six second
</span><span>Distance = 1/2*gravity*velocity^2
</span><span>So plugging: 1/2 * 9.8 * 36= 176.4 units</span>
It is because carbon dioxide traps the solar radiation which then warms up the atmosphere, not allowing the radiations to get deflected back in the outer space.. that's what is happening to our own planet the greenhouse effect.. which is also increasing the GLOBAL Temp of our planet too
Answer: 270 km
Explanation:
3 cm/80 km :: 10 cm/(x)km
cross multiply
3x = 80(10)
x = 800/3 = 266.66666... ≈ 270 km
Average acceleration is defined as

here



now for x direction we can say



Similarly for Y direction



so above is the acceleration in x and y directions