Answer:
a. 
b. 
Explanation:
The data given are
Height,h=550ft,
length of incline plane, L=1.50 miles
first we convert all parameters to meters
since 1ft=0.3048m then 550ft will be 167.76m
also 1mile=1609.34m, hence 1.5mile will be 2414m
From the diagram attached, the length and height formed a simple triangle with the length being the hypotenuse and the height being the opposite.
Hence using SOHCAHTOA, we can conclude that the angle will be

b. the new height becomes

going by the same formula, we solve the new length s

Answer:
They are balding dont be rude it happens to everyone
Answer:
The angle in between changed from 8 to 12 degrees
Explanation:
Solution:-
Angle between the incoming and reflected beam is always twice that of the inclination of the mirror.
Initially, Inclination angle θ = 4 degrees
Angle between incident and reflected beam is twice of the inclination of mirror. Hence,
Φ = 2*θ = 2*4 = 8 degrees.
Change, Inclination angle θ = 6 degrees
Angle between incident and reflected beam is twice of the inclination of mirror. Hence,
Φ = 2*θ = 2*6 = 12 degrees.
- The angle formed by the incoming laser beam and the reflected laser beam will change from 8 degrees to 12 degrees.