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
Leto [7]
3 years ago
8

Approximately how long would it take a telegraph signal to cross the united states from the east coast to the west coast? (teleg

raph signals travel at about the speed of light.)
Geography
1 answer:
castortr0y [4]3 years ago
6 0

If the coast-to-coast distance is about 2900 miles, it will take about ...

... (2900 mi)/(186000 mi/s) ≈ 15.6 ms

for the signal to travel coast-to-coast at light speed.

_____

There are time delays due to the amplifiers and repeaters required in the path, and due to the fact that the signals don't actually travel at the speed of light in a wire.

A test of internet speed between Seattle and Washington, DC shows a round-trip time of about 87 ms when traffic is light. Modern communication channels tend to be faster than the telegraph (especially when measured in words per minute).

You might be interested in
What is causing over fishing
Rom4ik [11]

Answer:

overpopulation?

Explanation:

8 0
3 years ago
Read 2 more answers
Yall I need help on this science question about genes..​
tangare [24]

The correct answer is B. Cells divide, producing more cells.

Explanation

The cell is the basic unit of life for all living things. Likewise, it is a form of classification for them since living organisms can be classified according to the number of cells they have unicellular (a single cell), multicellular (more than one cell). In organisms that have more than one cell, they divide to produce more cells and form the organs and tissues themselves. Cell division can occur from two processes that are mitosis and meiosis in which two and four cells are produced respectively. According to the above, the correct answer is B. Cells divide and producing more cells.

4 0
2 years ago
Condensation nuclei, tiny particles of matter in the air, are important because ________. a. they increase the density of air an
nekit [7.7K]

Answer:

d

Explanation:

Condensation nuclei are important because they form the basic building blocks of clouds. The condensation nuclei are tiny particles on which water vapor molecules form to create the most basic elements of clouds.

Later, other water molecules continue grouping around the original condensation nuclei and get larger to form raindrops.

8 0
2 years ago
____ lung disease is caused by the long-term inhalation of coal dust.<br> please answer .
Rufina [12.5K]
Coal workers' pneumoconiosis (CWP), commonly known as "black lung disease," occurs when coal dust is inhaled. Over time, continued exposure to the coal dust causes scarring in the lungs, impairing your ability to breathe.
6 0
3 years ago
Does stencil one overlap exactly with the original image in Question 1? Describe what you see. After the transformations are com
DiKsa [7]

Answer:

Yes, stencil one overlaps exactly with the original image. The original pattern is now hidden behind stencil one. Each point on stencil one corresponds with a point on the original image.

Explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Woman became more liberated and were more able to help the sick and the poor in times of trouble.
    11·1 answer
  • How do the outer planets differ from the inner planets?
    9·2 answers
  • Explain why the southeastern islands in the hawaiian island chain contain active volcanoes and are larger while the northeastern
    7·2 answers
  • Which of the following statements about the role of women in the world economy is false? A. Women produce half of the world’s fo
    11·1 answer
  • Tree is to forest as forest is to dunes is to
    6·1 answer
  • Under ideal conditions, some bacteria can reproduce every 20 minutes. What factors would be necessary for this to occur?
    7·2 answers
  • Answer bar:
    15·2 answers
  • A repeated pattern of spikes or drops associated with certain times of the year is called _____
    15·1 answer
  • How have human systems and political systems shaped the Russian Core?
    6·1 answer
  • Analyze the chart below and answer the question that follows.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!