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
kumpel [21]
3 years ago
10

You are in a hot air balloon, 650 m above the flat Texas plains. The Earth's radius is about 6400 km.You look out toward the hor

izon. How far out can you see−that is, how far is your horizon?
Physics
1 answer:
Molodets [167]3 years ago
4 0

Answer:

91 km

Explanation:

Draw a picture.  The line of sight to the horizon forms a tangent line with the curvature of the Earth.  The radius line to that point forms a right angle with the tangent line.  So we can use Pythagorean theorem to find the distance.

c² = a² + b²

(6400 km + 0.650 km)² = (6400 km)² + d²

d ≈ 91 km

You might be interested in
Uses of solar cells ?
Damm [24]

Solar cells are used to trap sunlight energy (light energy) and convert it to electric energy for domestic and other purposes.

7 0
3 years ago
What is the equation for frequency, wavelength, and speed of a wave?
Nastasia [14]

Answer:

       λ = v/f

Explanation:

frequency=f

wavelength = λ

speed of a wave=v

7 0
3 years ago
A light ray is striking the surface of Earth. Which factor would make the light ray more likely to be absorbed than reflected? l
Vladimir [108]

Answer:

B

Explanation:

Trust

5 0
3 years ago
Read 2 more answers
What’s being done to the brake fluid in the above photo?
ch4aika [34]

Answer:

D. Checking to see if the brake fluid is contaminated

Explanation:

5 0
3 years ago
______ had occurred when your body can no longer regulate its temperature
sergejj [24]
Heat stroke had occurred when your body can no longer regulate its temperature. hope it helps :)
4 0
3 years ago
Other questions:
  • On a horizontal, linear track lies a cart that has a fan attached to it. The mass of the cart plus fan is 364 g. The cart is pos
    15·2 answers
  • The equation for distance is d = st. If a car has a speed of 77.0 m/s and travels for 45.0 seconds, how far does it go?
    6·2 answers
  • Which of the following is a befit participating in team sports?
    13·1 answer
  • 3. Using the F, m, a triangle, calculate the boy's mass. Use the "force
    8·1 answer
  • Dr. Eriksson is working on a material called selenium. She is adding a certain number and type of atoms to the selenium, which w
    11·2 answers
  • An optical engineer wishes to specify the properties of a concave makeup mirror, which is supposed to provide an upright and enl
    12·1 answer
  • IDENTIFY WHAT IS BEING DESCRIBED IN EACH SENTENCE AND WRITE YOUR ANSWER ON THE BLANKS
    11·1 answer
  • The following number - 0.050437 - written to TWO significant figures would be
    12·1 answer
  • Somebody tell me what the answer is please
    5·2 answers
  • Which of the following are examples of projectile motion?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!