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
matrenka [14]
3 years ago
13

Mr. Smith is flying his single-engine plane at an altitude of 2400 feet. He sees a cornfield at an angle of depression of 30º. W

hat is his horizontal distance to the cornfield?
Mathematics
1 answer:
Svet_ta [14]3 years ago
4 0

Answer:

Height of the fighter plane =1.5km=1500 m

Speed of the fighter plane, v=720km/h=200 m/s

Let be the angle with the vertical so that the shell hits the plane. The situation is shown in the given figure.

Muzzle velocity of the gun, u=600 m/s

Time taken by the shell to hit the plane =t

Horizontal distance travelled by the shell =u

x

t

Distance travelled by the plane =vt

The shell hits the plane. Hence, these two distances must be equal.

u

x

t=vt

u Sin θ=v

Sin θ=v/u

=200/600=1/3=0.33

θ=Sin

−1

(0.33)=19.50

In order to avoid being hit by the shell, the pilot must fly the plane at an altitude (H) higher than the maximum height achieved by the shell for any angle of launch.

H

max

=u

2

sin

2

(90−θ)/2g=600

2

/(2×10)=16km

You might be interested in
What is an atom? GIVING BRAINLIEST 30 POINTS PLEASE HELP
miskamm [114]
1. Option 4
2. Option 2
3. Option 2
4. Option 4 (not completely sure)
5. Option 2
6. Option 1 (not completely sure)
7. Option 4
8. <span>Isotopes are caused by different numbers of neutrons in the electron cloud
9.  Not sure of the question
10. Positive charge
11. nucleus
</span>
8 0
3 years ago
The sum of 60 and 30 is divided by 10 and the difference of quotient and 3 is divided by 2​
almond37 [142]

Answer:

Final result is 3.

Step-by-step explanation:

Quotient = (60 + 30) / 10

= 90/10

= 9.

Difference of quotient and 3

= 9 - 3

= 6

6 / 2 = 3.

8 0
3 years ago
Please help me with this !:(
ahrayia [7]

Answer:

75.062cm^{2}

Step-by-step explanation:

To find the missing side use pythagorean theorem

So 6^{2} +b^2=8.5^2

Solve for b, b= 6.021

To find the area use \frac{1}{2}bh

So \frac{1}{2}(6.021+19)(6)= area

And you get 75.062

7 0
3 years ago
I don’t understand!!!!!
Sergio039 [100]

These are vertical angles, meaning they're always the same length.

3x = x + 28

2x = 28

x = 14

4 0
3 years ago
Why is 3 + (−5) equal to −2?
tamaranim1 [39]

Answer: since the 5 is a negative you are subtracting it from 3

so 3 +(-5) is actually 3-5. which = -2

Step-by-step explanation:

Hope this helps

5 0
2 years ago
Other questions:
  • What is the radius of a circle given by equation x^2 + y^2 - 2x + 8y - 47 = 0
    7·2 answers
  • I don’t understand how to solve this
    13·1 answer
  • Guys, please help me please
    11·1 answer
  • 5. Find the surface area of the cone. Round to<br> the nearest hundredth.<br> 2 ft<br> 6 ft
    14·1 answer
  • Help! I’ll give brainliest!
    10·1 answer
  • I WILL GIVE BRAINLIEST! ALSO KEEP AWARE!
    6·1 answer
  • 5e = 18.1 ---I gotta know what number the e is---
    6·1 answer
  • When it comes to reimbursement packages, company A offers $175 plus
    13·1 answer
  • Are the pink arcs congruent?
    14·2 answers
  • У.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!