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
Advocard [28]
3 years ago
6

The speed of light is 3.00×108m/s. How long does it take for light to travel from Earth to the Moon and back again?

Chemistry
1 answer:
grandymaker [24]3 years ago
7 0
The variable we have to determine for this problem is the time. Since the given information is speed, we have to know the distance so that we can solve for the time. From literature, the distance between the Earth and the moon is 384,400,000 meters. Therefore,

Speed = Distance/Time
Time = Distance/Speed
Time = 384,400,000 m/ 3×10⁸ m/s = 1.28 seconds
You might be interested in
How many moles of ammonia (nh3 will be produced from 4.0 moles of nitrogen (n2?
Lana71 [14]
Standard equation would be N2(g)+3H2(g)==>2NH3(g), so through stoichiometry, (4 mol N2)(2mol NH3/1 mol N2), assuming excess H2, would yield 8 moles of NH3.  
3 0
3 years ago
How are mutation affects different?
dsp73
Mutation affects can be different just with changes as small as the substitution of a single DNA building block or nucleotide base with another nucleotide base
6 0
2 years ago
The reaction of iron with oxygen to form iron oxide is an example of an oxidation–reduction reaction: 4fe + 3o2 → 2fe2o3. in thi
nadya68 [22]

Answer:-

Oxygen gains electrons and is reduced.

Explanation:-

For this reaction the balanced chemical equation is

4Fe + 3O2 --> 2Fe2O3

When Oxygen is present as oxygen gas, the oxidation number of O is Zero since it is the only element present in Oxygen gas.

Similarly Iron is present in Fe with oxidation number Zero.

In the case of Fe2O3, Oxygen has the oxidation number -2 while Iron has +3.

So the oxidation number of Oxygen goes from Zero to -2.

Since the oxidation number decreases Oxygen is reduced.

Since reduction involves gain of electrons, Oxygen gains electrons.

4 0
3 years ago
The universe displays _____.
Orlov [11]

Answer:

B) the full spectrum of light

Explanation:

4 0
3 years ago
Read 2 more answers
Bromine has chemical properties most similar to...
Aleksandr-060686 [28]
Flourine.

You are very welcome
3 0
3 years ago
Read 2 more answers
Other questions:
  • You add 7.8 g of iron to 20.70 mL of water and observe that the volume of iron and water together is 21.69 mL . Calculate the de
    13·1 answer
  • Water acts as a(n) _____. solvent solute organic substance ionic compound
    10·2 answers
  • Use the Rydberg equation to calculate the wavelength (in Å) of the photon absorbed when a hydrogen atom undergoes a transition f
    14·1 answer
  • In a convection current, what causes the molten rock to move from the bottom of the mantle to the top of the mantle?
    15·1 answer
  • A sample is found to contain 57.2 % N a H C O 3 NaHCOX3 by mass. What is the mass of NaHCO 3 in 4.25 g of the sample
    15·1 answer
  • The rate law for a hypothetical reaction is rate = k [A][B]. If the concentrations of A and B are both 0.020 moles per liter and
    11·1 answer
  • The United States is a major producer of what element?
    7·2 answers
  • nter your answer in the provided box. Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. C
    8·1 answer
  • What is the balanced chemical equation of CO2 + H2O = C2H5OH + O2?​
    12·1 answer
  • If all the forces of an object cancel, the object will ___.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!