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
mars1129 [50]
3 years ago
12

Kepler-186f is an exoplanet that orbits a star other than the Sun. Its star is the red dwarf Kepler-186. It is the first planet

to be discovered that orbits its star at a distance similar to Earth’s distance from the Sun. If Kepler-186f is approximately 5.4 x 1010 meters from Kepler-186, how long does it take for light from the star to reach the exoplanet? The speed of light is 3.0 x 108 m/s
Biology
1 answer:
Radda [10]3 years ago
7 0

Answer:

180seconds

Explanation:

According to the question, Kepler-186f is an exoplanet that orbits a star called kepler-186, other than the Sun.

Distance of the star (kepler-186) away from the planet is 5.4 x 10^10 meters

In order to calculate how long i.e. time, a light moving at an average speed of 3.0 x 10^8 m/s will get to the exoplanet from the star, we use;

Speed (m/s) = Distance (m) ÷ time (s)

Time = Distance/speed

Time = 5.4 x 10^10 ÷ 3.0 x 10^8

Time = 5.4/3.0 × 10^ (10-8)

Time = 1.8 × 10^2

Time = 180seconds.

You might be interested in
Write a brief report about what causes cancer cells to develop.
a_sh-v [17]
In order to study the formation of cancer cells, you should study the life cycle of normal cells as cancer cells are abnormal cells. 

Actually, Normal cells grow, divides and died after an interval of time. And when this process is break down, cancer cells begin to form. They are usually old cells which don't die after their life cycle.

Hope this helps!
8 0
3 years ago
In a lab experiment, students had four samples of elements. They made observations about the appearance of each sample, then pro
aniked [119]

Answer:

a- black powder

Explanation:

it is powder and has no pigment

6 0
3 years ago
Perbedaan amilum, gula dan pati
aleksandr82 [10.1K]

<span>Sugars and starches are different because they have a different texture and they also taste different.
</span><span>

Gula dan pati yang berbeda karena mereka memiliki tekstur yang berbeda dan mereka juga rasa yang berbeda.



</span>
8 0
3 years ago
Use the double-stranded DNA molecule below to answer the following questions. The first pair of nucleotides (bolded) contains th
krok68 [10]

Answer:

The correct answer is 2. 5'-AUGUCAGGUACGCCACAU-3'

Explanation:

The template strand for transcription is 3'-TACAGTCCATGCGGTGTA-5 and RNA polymerase will add complementary mRNA sequence against this strand in the opposite direction i.e., 5' to 3' direction.

In RNA, A(adenine) makes complementary base pairing with U(uracil), not with T(thymine) and the rest of the base-pairing is same as in DNA. Therefore the correct mRNA produced from the transcription of this DNA molecule by the help of RNA polymerase is 5'-AUGUCAGGUACGCCACAU-3'.

Then this mRNA sequence will be used by ribosomes to synthesize proteins during the translation process.

7 0
3 years ago
Levels of biological organisations explained in details
Xelga [282]
Have a nice day today
8 0
3 years ago
Other questions:
  • A sorting device made up of a system of choices that is used to classify organisms is called _____.
    5·1 answer
  • The density of water is:<br> 1.0 kg/L<br> 0.1 g/ml<br> 10 g/L<br> none of these
    10·1 answer
  • Before removing a bird from its cage, you should?
    14·2 answers
  • The study of genetics and inheritance begins with a look inside the nucleus of a cell true or false
    11·1 answer
  • Which of these statements are true about diffusion
    5·1 answer
  • When a cell or organism only has one rony of each chromosomes
    15·1 answer
  • Hello please help i’ll give brainliest
    13·1 answer
  • The oldest oceanic crust is
    8·1 answer
  • Why would a mutation in a somatic cell of a multicellular organism escape detection?
    8·1 answer
  • What is the major difference between bacterial chromosomes and eukaryotic chromosomes?.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!