1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vladimir2022 [97]
2 years ago
14

An opaque cylindrical tank with an open top has a diameter of 3.25 m and is completely filled with water. When the afternoon Sun

reaches an angle of 22.8° above the horizon, sunlight ceases to illuminate the bottom of the tank. How deep is the tank
Mathematics
1 answer:
kicyunya [14]2 years ago
6 0

Answer:

10.69

Step-by-step explanation:

We must first know that the angle of refraction is given by the following equation:

n_water * sin (A_water) = n_air * sin (A_air)

where n is the refractive index, for water it is 1.33 and for air it is 1.

The angle (A) in the air is 22.8 °, and that of the water is unknown.

Replacing these values we have to:

1.33 * sin (A_water) = 1 * 0.387

sin (A_water) = 1 * 0.387 / 1.33

A_water = arc sin (0.2907) = 16.9 °

now for the tank depth:

h = D / tan (A_water)

D = 3.25

Replacing

h = 3.25 / tan 16.9 °

h = 10.69

Therefore the depth is 10.69 meters.

You might be interested in
Arrange 439.216 439.126 439.612 439.261 in decreasing order
Thepotemich [5.8K]

hi <3

439.612, 439.261, 439.216, 439.126

hope this helps :)

7 0
2 years ago
Read 2 more answers
The exponential function f(x) has a horizontal asymptote at y = 3. What is the
fenix001 [56]

Answer:

The function diverges to +\infty.

Step-by-step explanation:

The function diverges to +\infty.

3 0
2 years ago
If y varies directly as​ x, and y=8 when x=3​, find y when x=15.
Crank

Answer:

y=40

Step-by-step explanation:

The formula for Direct Variation is y=kx or k=y/x. In this case I would use k=y/x. If you're y is 8 and x is 3, this means that K=8/3. Using this, we know that X=15. We have to find a Y value so that the fraction with an x of 15 simplified is 8/3. To do this you would write 8/3 and y/15. Now cross multiply to get 3y=120. Divide by 3 to get y=40. View my attachment for the work!

8 0
3 years ago
13
Sunny_sXe [5.5K]

Answer: A 13.4

Step-by-step

a^2 + b^2= c^2 4^2 + b^2 = 14^2 16+ b^2= 195 b^2= 180 b= square root of 180 b= 6 square root of 5 or 13.42

7 0
2 years ago
Can y’all plz help thx
astraxan [27]
The answer: 17 degrees
7 0
3 years ago
Other questions:
  • Between which two integers does √11 lie?
    5·1 answer
  • For a party , Mr and Mrs. Kemper made 7.25. gallons of fruit punch.How many quarts of punch did they make.
    7·1 answer
  • Help with the answer
    14·1 answer
  • What is the value of x
    8·1 answer
  • Gary mails the third power of 10 flyers in one week.How many fliers does gary mail
    8·1 answer
  • Suppose a population has 26 members identified with the letters A through Z.(a) You select one individual at random from this po
    12·1 answer
  • You earn $1 million per month. What is your annual salary
    14·2 answers
  • 14 + 3х - 5 + 4х how do I solve ​
    6·2 answers
  • A baseball team played 154 regular season gamesThe ratio the tumber games they the games they lost 2/5 How many games they many
    10·1 answer
  • PLEASE HELP ME PLEASE!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!