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
lyudmila [28]
3 years ago
8

A hot air balloon is flying above Grovenburg. To the left side of the balloon, the balloonist measure the angle of depression to

the Groveburg soccer fields to be 20 degrees 15’. To the right side of the balloon, the balloonist measures the angle of depression to the high school football field to be 62 degrees 30’. The distance between the two athletic complexes is 4 miles.
Physics
1 answer:
Savatey [412]3 years ago
6 0
Find enclosed file with a drawing and the calculations of all angles and all distances.

These are the results that you will find in it:

<span>Angle x = 90° - 22°15’  </span>

Angle y = 90° - 62°30'

Angle z = 22°15’ = 22.25°

Angle w = 62°30’ = 62.50°

 

tan(z) = H/a => a = H/tan(z)

tan(w) = H/b => b = H/tan(w)

 

a+b = 4 => H/tan(z) + H/tan(w) = 4 => H [1/tan(z) + 1/tan(x) ] = 4

 <span>   </span>H = 4 / {[1/tan(z) + 1/tan(x) ] } = 1.35 miles

<span>    </span>a = 1.35 / tan(22.25°) =  3.30 miles

<span>    </span>b = 4 – 3.30 = 0.7 miles

I hope it is very useful and you understand it. Let me know.




Download pdf
You might be interested in
An alpha particle has a charge of +2e and a mass of 6.64 x 10-27 kg. It is accelerated from rest through a potential difference
kondor19780726 [428]

Answer:

a) v = 1.075*10^7 m/s

b) FB = 7.57*10^-12 N

c) r = 10.1 cm

Explanation:

(a) To find the speed of the alpha particle you use the following formula for the kinetic energy:

K=qV          (1)

q: charge of the particle = 2e = 2(1.6*10^-19 C) = 3.2*10^-19 C

V: potential difference = 1.2*10^6 V

You replace the values of the parameters in the equation (1):

K=(3.2*10^{-19}C)(1.2*10^6V)=3.84*10^{-13}J

The kinetic energy of the particle is also:

K=\frac{1}{2}mv^2       (2)

m: mass of the particle = 6.64*10^⁻27 kg

You solve the last equation for v:

v=\sqrt{\frac{2K}{m}}=\sqrt{\frac{2(3.84*10^{-13}J)}{6.64*10^{-27}kg}}\\\\v=1.075*10^7\frac{m}{s}

the sped of the alpha particle is 1.075*10^6 m/s

b) The magnetic force on the particle is given by:

|F_B|=qvBsin(\theta)

B: magnitude of the magnetic field = 2.2 T

The direction of the motion of the particle is perpendicular to the direction of the magnetic field. Then sinθ = 1

|F_B|=(3.2*10^{-19}C)(1.075*10^6m/s)(2.2T)=7.57*10^{-12}N

the force exerted by the magnetic field on the particle is 7.57*10^-12 N

c) The particle describes a circumference with a radius given by:

r=\frac{mv}{qB}=\frac{(6.64*10^{-27}kg)(1.075*10^7m/s)}{(3.2*10^{-19}C)(2.2T)}\\\\r=0.101m=10.1cm

the radius of the trajectory of the electron is 10.1 cm

6 0
3 years ago
Which of these galaxies would you most likely find at the center of a large cluster of galaxies?
Arada [10]

Answer:

b. a large elliptical galaxy

Explanation:

In elliptical galaxies the stars are grouped in an elliptical shape, it has a low quantity of gas and dust in comparison to spiral galaxies, and its stars belong to an old population, there is not new stellar formation in it.

The stars orbit in a messy way which made to believe that they form from the merger of galaxies.

They are also really massive (around 10^{4} solar masses).

The most massive and luminous can be found in the center of cluster of galaxies.  

4 0
3 years ago
A neutron star has more mass then what and is about the same size as what?
Alex_Xolod [135]
A neutron star has more mass than a bowling ball,
and is about the same size as Chicago.
5 0
3 years ago
I NEED HELP ASAP!!!!!!!!!!!! b) Contour lines represent areas of _________elevation
jeka94

Answer:

Contour line, a line on a map representing an imaginary line on the land surface, all points of which are at the same elevation above a datum plane, usually mean sea level. The diagram illustrates how contour lines show relief by joining points of equal elevation. Encyclopædia Britannica, Inc. Video Player is loading.

6 0
3 years ago
A space traveler discovers that her weight on a new planet is 192 newtons. Her mass is 68 kilograms. What is the gravitational a
alina1380 [7]

Answer:

g ≈ 2.82 m/s^2

Explanation:

By W = mg,

W = weight (in newtons)

m = mass (in kg)

g = gravitational acceleration (in m/s^2)

192 = 68g

g = 2.82352941176 m/s^2

g ≈ 2.82 m/s^2

3 0
2 years ago
Other questions:
  • A circuit has a resistance of 10ohmsband a current of 42 amps.caculate the voltage
    15·1 answer
  • If you ignore air resistance after an initial force launches a projectile, name all forces acting on it as it moves through the
    14·1 answer
  • A plane flies at 200 m/s, emitting a 600 Hz roar. Assuming a 340 m/s speed of sound, what will be the frequency of sound waves h
    11·1 answer
  • A coil with an inductance of 2.3 H and a resistance of 14 Ω is suddenly connected to an ideal battery with ε = 100 V. At 0.13 s
    9·1 answer
  • 5. A 5.0 kg object accelerates uniformly from rest for 5.0 s and reaches a final velocity of 20.0 m/s. At 3.0 s, what is the obj
    6·1 answer
  • A block of mass 2.95 kg is placed against a horizontal spring of constant k = 820 N/m and pushed so the spring compresses by 0.0
    11·1 answer
  • Explain the energy transformations that occur when accelerating in a gasoline<br> vehicle.
    5·2 answers
  • Vector A has magnitude of 8units and makes an angle of 45° with the positive x-axis. Vector B also has the same magnitude of 8un
    14·1 answer
  • Which combinations of forces would best move a large, heavy box across a room? Choose the three statements that apply.
    11·1 answer
  • What hazardous wastes are common in ordinary households? What can you do to reduce the impact you make on the environment from t
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!