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
Elza [17]
3 years ago
5

Two airplanes flying 1.0 km apart at the same altitude spot a target ahead of them on the ground. The angles of depression subte

nded by the target at the two airplanes are 45o and 37o. The airplanes and the target are in the same vertical plane. What is the altitude (in meters) at which the planes are flying? (Note: For the distances involved, the earth can be considered as flat.)
a. 2900
b. 3060
c. 1000
d. 2000
Physics
1 answer:
lana66690 [7]3 years ago
7 0

Answer:

option B

Explanation:

given,

two plane are moving in same altitude at a distance of 1.0 km apart.

angle of depression of the two planes given are 45° and 37°

now, the diagram is attached below

using diagram,

now in ΔAOC

tan 45° = \dfrac{h}{x}

x = h..................(1)

now using triangle ΔBOD

tan 37° = \dfrac{h}{x + 1000}

from equation (1)

0.754 =  \dfrac{h}{h + 1000}

0.754 h + 753.56 = h

0.246 h = 753.56

h = 3063.5 m

hence, the correct answer is option B

You might be interested in
Select all of the answers that can serve as a meaning for sexuality. (more than one answer may be selected)
Aneli [31]
Gender and self esteem is the answer
5 0
3 years ago
HELP!!! I have no idea how to calculate this.
stiks02 [169]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the kinematics of a body.

Since, we know that Velocity = Distance / time

hence, V = 20/5 = 4 m/s

hence the velocity of the RC car is 4 m/s westwards direction.

4 0
3 years ago
Which action might lead scientists to develop new explanations about the
sweet [91]

Answer:

The correct option is;

B. Designing experiments to replicate the conditions in which life may have first evolved on Earth

Explanation:

The proof to the hypothesis that life originated from inanimate inorganic, or non-living  molecules which is an explanation for the origin of life on Earth was provided by an experiment designed and performed in 1953 by Stanley L. Miller and Harold C. Urey which consisted of using chemicals proposed in the hypothesis and combining them through a specific design process to replicate expected atmospheric condition before the life began on Earth.

With such successful design of experiments to replicate the conditions in which life may have first evolved on Earth, it was possible to better explain the hypothesis that life originated from inorganic molecule.

5 0
3 years ago
Read 2 more answers
A man has a mass of 110kg . what is his weight?
Alisiya [41]
<span>1078 kgm / s would be the answer I hope this helps!!!</span>
5 0
3 years ago
Read 2 more answers
A 2400W electric toaster is connected to a standard 120 V wall outlet. A family
jolli1 [7]

Answer:

1)  energy = 15.6 kWh,  2)    total_cost = $ 2.03

Explanation:

1) The energy dissipated is the product of the power and the time of use In a month it was used t = 6.5 h and the power of the toaster is

P = 2400 W = 2,400 kW

       energy = P  t

       energy = 2,400  6.5

        energy = 15.6  kWh

using rounding to a decimal

        energy = 15.6 kWh

2) The cost of energy is unit_cost = $ 0.13 / kWh

so the total cost

         total_cost = energy    unit_cost

         total_cost = 15.6   0.13

         total_cost = $ 2.028  

rounding to two decimal places

         total_cost = $ 2.03

5 0
3 years ago
Other questions:
  • Assuming a successful launch, what is the speed of the small CO2 rocket given that it travels about 10 meters in about 3 seconds
    5·1 answer
  • Twin sisters Annie and Hannah are fighting
    9·2 answers
  • What factors does the speed of atoms depend on?
    5·1 answer
  • (a) What is the angular speed ω about the polar axis of a point on Earth's surface at a latitude of 55° N? (Earth rotates about
    12·1 answer
  • Sebuah benda dijatuhkan bebas dari ketinggian 200 m jika grafitasi setempat 10 m/s maka hitunglah kecepatan dan ketinggian benda
    7·1 answer
  • Can someone help because I am very confused
    12·1 answer
  • What does the tilt of Earth on its axis cause?
    6·1 answer
  • Hola alguien pa hablar!!!!!!!!!!!​
    13·1 answer
  • The learning about Universe is<br> called ________ ...​
    14·2 answers
  • Q3, A ball of mass 5.0 kg moving with a Velocity of 10.0 ms collides
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!