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
Sindrei [870]
1 year ago
5

Two birds sit at the top of two different trees 17.8 feet away from one another. the distance between the first bird and a birdw

atcher on the ground is 37.4 feet. what is the angle measure, or angle of depression, between this bird and the birdwatcher? two trees have a bird on top of each. distance between birdwatcher and first bird is 37 point 4 feet. distance between each bird is 17 point 8 feet. angle of depression between birdwatcher and first bird is unknown. © 2011 jupiter images corporation 25.5° 64.5° 28.4° 61.6°
Physics
1 answer:
Yanka [14]1 year ago
7 0

The angle of depression between the bird and the birdwatcher is 61.32°

In the question, it is said that the distance between two birds is 17.8ft and the distance between the first bird and the birdwatcher is 37.4ft. So, when we draw an image in our mind then we can say that this whole system forms a right-angle triangle with a base of 17.8ft and a hypotenuse of 37.4ft. As we know that to calculate the angle of depression we will use trigonometric equations here i.e.,

cos x = Base/Hypotenuse

cos x = 17.8 / 37.4

cos x = 0.48

x = cos⁻¹(0.48)

x =  61.32°

Thus, the angle of depression is 61.32°.

Learn more about the angle of depression here:

brainly.com/question/26154210

#SPJ4

You might be interested in
12.5 Round to the nearest hundredth.
7nadin3 [17]
I think its 13...........
7 0
3 years ago
An AC power source has an rms voltage of 120 V and operates at a frequency of 60.0 Hz. If a purely inductive circuit is made fro
Dmitrij [34]

Answer:

(a) 17634.24 Ω

(b) 0.0068 A

Explanation:

(a)

The formula for inductive inductance is given as

X' = 2πFL................... Equation 1

Where X' = inductive reactance, F = frequency, L = inductance

Given: F = 60 Hz, L = 46.8 H, π = 3.14

Substitute into equation 1

X' = 2(3.14)(60)(46.8)

X' = 17634.24 Ω

(b)

From Ohm's law,

Vrms = X'Irms

Where Vrms = Rms Voltage, Irms = rms Current.

make Irms the subject of the equation

Irms = Vrms/X'...................... Equation 2

Given: Vrms = 120 V, X' = 17634.24 Ω

Substitute into equation 2

Irms = 120/17634.24

Irms = 0.0068 A

5 0
3 years ago
You are trying to overhear a juicy conversation, but from your distance of 25.0 m , it sounds like only an average whisper of 20
spayn [35]

Answer:So You Decide To Move Closer To Give The Conversation A Sound Level Of 80.0dB Instead. ... You are trying to overhear a juicy conversation, but from your distance of 24.0m , it sounds like only an average whisper of 40.0dB .

Explanation:

7 0
3 years ago
A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 152 om and makes an angl
aliya0001 [1]

Answer:

D₂= 167,21 cm : Magnitude  of the second displacement

β= 21.8° , countercockwise from the positive x-axis: Direction of the second displacement

Explanation:

We find the x-y components for the given vectors:

i:  unit vector in x direction

j:unit vector in y direction

D₁: Displacement Vector 1

D₂: Displacement Vector 2

R= resulta displacement vector

D₁= 152*cos110°(i)+152*sin110°(j)=-51.99i+142.83j

D₂= -D₂(i)-D₂(j)

R=  131*cos38°(i)+ 131*sin38°(j) = 103.23i+80.65j

We propose the vector equation for sum of vectors:

D₁+ D₂= R

-51.99i+142.83j+D₂x(i)-D₂y(j) = 103.23i+80.65j

-51.99i+D₂x(i)=103.23i

D₂x=103.23+51.99=155.22 cm

+142.83j-D₂y(j) =+80.65j

D₂y=142.83-80.65=62.18 cm

Magnitude and direction of the second displacement

D_{2} =\sqrt{(D_{x})^{2} +(D_{y} )^{2}  }

D_{2} =\sqrt{(155.22)^{2} +(62.18 )^{2}  }

D₂= 167.21 cm

Direction of the second displacement

\beta = tan^{-1} \frac{D_{y}}{D_{x} }

\beta = tan^{-1} \frac{62.18}{155.22 }

β= 21.8°

D₂= 167,21 cm : Magnitude  of the second displacement

β= 21.8.° , countercockwise from the positive x-axis: Direction of the second displacement

6 0
3 years ago
HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Nata [24]
When the child is moving fastest
6 0
3 years ago
Read 2 more answers
Other questions:
  • Evan drew a diagram to illustrate radiation. What do the arrows represent? gases mixing with particles liquid moving through a v
    7·2 answers
  • A negative charge is moved from point A to point B along an equipotential surface. Which of the following statements must be tru
    10·1 answer
  • The period-luminosity relation is critical in finding distances with
    11·1 answer
  • A dart leaves a toy dart gun with initial velocity of 7.76 m/s, regardless of the angle it is fired. What is the maximum horizon
    13·1 answer
  • A 60-vibration-per-second wave travels 30 meters in 1 second. Its frequency isA) 30 hertz and it travels at 60 m/s.B) 60 hertz a
    9·1 answer
  • Materials that are poor conductors of thermal energy are called.....
    6·1 answer
  • Why are hydraulic brakes used?​
    12·1 answer
  • 8 points)Antireflection coating can be used on the eyeglasses to reduce the reflection of light: a) A 100nm thick coating is app
    13·1 answer
  • All the formulas for Friction​
    11·1 answer
  • Two metal disks are welded together and are mounted on a frictionless axis through their common centers. One disk has a radius R
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!