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
Eduardwww [97]
3 years ago
12

Suppose that you take the spectra of several stars to identify the 434-nm line of hydrogen (color = indigo), but you find the li

nes are shifted due to the Doppler effect. Of the following shifted locations of this line, which one is that of a star that is moving away from us at the highest speed?
Chemistry
1 answer:
guapka [62]3 years ago
5 0

Answer:if the wavelength increases, it is that of a star moving away from us. If the wavelength decreases, it is that of a star moving away from us.

Explanation: Doppler effect is caused by a motion towards or away from the observer(this motion is called a radial velocity). The greater the Doppler effect, the greater the motion towards or away from us. Sideways motion does nor cause Doppler effect.

The formula for calculation of Doppler effect= (wavelength emitted by the source) - (wavelength observed by the observer) / wavelength emitted by the source

Which also equals to; V/c

Where v= speed and c= speed of light.

The amount the pattern is shifted can enable us to determine the speed of the objects in our line of sight.

You might be interested in
How many moles are there in 5.699 liters of neon gas at STP? Express your answer with the appropriate significant figures and un
Svetradugi [14.3K]

Answer:

The number of moles: 0.25442 moles

Explanation:

One mole of Neon gas will occupy 22.4 at STP.

5.699L consists of \frac{5.699}{22.4} = 0.25442 moles.

4 0
3 years ago
Balance each skeleton reaction, use Appendix D to calculate E°cell , and state whether the reaction is spontaneous:(a) Cu⁺(aq) +
melamori03 [73]

The balanced equation reaction :

2Cu+(aq) + PbO2(s) + SO42–(aq) + 4H+  -----------> PbSO4(s) + 2 Cu2+(aq)  + 2H2O

A balanced equation is an equation for a chemical reaction in which the range of atoms for every detail in the reaction and the full charge is identical for both the reactants and the products. In other phrases, the mass and the fee are balanced in each aspect of the reaction.

A balanced equation happens while the variety of the atoms involved inside the reactants side is identical to the variety of atoms in the goods facet. in this chemical reaction, nitrogen (N2) reacts with hydrogen (H) to provide ammonia (NH3). The reactants are nitrogen and hydrogen, and the product is ammonia.

A chemical equation is the symbolic representation of a chemical reaction inside the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities.

Eo  = Eored - Eo oxd

 = 1.69  - 0.153

 = 1.54 V

Eocell is positive so the reaction is spontaneous.

Learn more about the balanced reaction  here brainly.com/question/15355912

#SPJ4

4 0
2 years ago
Which is an example of a catalyst?<br><br> heat<br><br> stirring<br><br> decrease in temperature
Lorico [155]
I think the correct answer is decrease in temperature
I feel like that’s the right one
3 0
4 years ago
What does is so used to eliminate a substance that is too large to leave by diffusion
dybincka [34]
Reword it so we can understand it better, to answer your quetion

8 0
3 years ago
PLS FAST WILL GIVE BRAINLIEST!! Examine the statement.
tatiyna

Answer:

I agree

Explanation:

For scientists working in classified areas, collaboration with university programs and researchers provides opportunities to expand and strengthen their science through the conduct of peer-reviewed, open literature research.

4 0
3 years ago
Other questions:
  • What is always true of a weak acid ?
    9·2 answers
  • Help me I am stuck in science, click on this
    14·2 answers
  • Which is a measure of how hot or cold something is?
    9·1 answer
  • What is the IUPAC for the compound ZnO?
    15·1 answer
  • Brass and bronze are both (space) of copper because copper is the (space)
    6·2 answers
  • How could Mendeleev predict the properties of elements that had not yet been discovered?
    15·1 answer
  • 4. A 230.-mL sample of a 0.275 M solution is left on a hot plate overnight; the following morning the solution is 1.10 M. What v
    13·1 answer
  • Why do covalent compounds tend to have lower melting points than ionic compounds?
    5·2 answers
  • HELPPPPPPPP <br> I NEEED TO PASS
    7·2 answers
  • Determine the type of each chemical equation describing a precipitation reaction. C a 2 + ( a q ) + S O 4 2 − ( a q ) ⟶ C a S O
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!