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
WITCHER [35]
3 years ago
11

V391 Pegasi b is a star that is 4,570 light years away from Earth. What is this distance in kilometers?

Chemistry
2 answers:
Lelu [443]3 years ago
8 0
Its 43232 kilometers away 

Elina [12.6K]3 years ago
8 0

Answer:

4,390'538,259'694,256 kilometers

Explanation:

Light years is a distance measure that represents the distance the light travels in the vacuum in a year and it is approximately  equal to 9'460,730'472,580.8 kilometers. Then, if V391 Pegasi is 4,570 light years away from earth:

4,570(light year) * \frac{9'460,730'472,580.8 (kilometers)}{1(light year)}  = 4,390'538,259'694,256(kilometers)

You might be interested in
What is the answer plzzzzzz help ASAP
zhuklara [117]

The answer is C) reactants because a chemical reaction is the process in which atoms present in the starting substance rearrange to give new chemical combinations present in the substance formed by the reaction
5 0
3 years ago
Read 2 more answers
True or false. a wheel and axle are a rotating lever that move around an effort arm?
adelina 88 [10]

Answer:

True

Explanation:

the machine shown in figure 9.9 is called a wheele and axle. It's a form of lever. the effort arm can rotate in a complete circle, which is the center of the axle.

7 0
3 years ago
se tienen 10 litros de nitrogeno gaseoso bajo una presion de 560 mm Hg. Determina el volumen del nitrogeno a una presion de 760
Dominik [7]

Answer:

working business city philadelphian

3 0
3 years ago
Uranium-238 decays to lead-206 with a half-life of 4.5 x 109 yr. Determine how much uranium-238 decays in milligrams (to three s
Mamont248 [21]

Answer:

2.15 mg of uranium-238 decays

Explanation:

For decay of radioactive nuclide-

                        N=N_{0}.(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}}

where N is amount of radioactive nuclide after t time, N_{0} is initial amount of radioactive nuclide and t_{\frac{1}{2}} is half life of radioactive nuclide

Here N_{0}=4.60 mg, t=4.1\times 10^{9}yr and t_{\frac{1}{2}}=4.5\times 10^{9}yr

So,N=(4.60mg)\times (\frac{1}{2})^{\frac{4.1\times 10^{9}}{4.5\times 10^{9}}}

so, N = 2.446 mg

mass of uranium-238 decays = (4.60-2.446) mg = 2.15 mg

3 0
3 years ago
three of the following are base units used in the metric system. which is not a base unit? meter liter kilogram gram
Novosadov [1.4K]
The base units used in the metric system are meter for the measurement of distance or displacement, liter as unit measurement of volume, kilogram as a unit of measurement of mass and seconds as unit of measurement of time. The answer is here is D. gram.
8 0
3 years ago
Other questions:
  • a cylinder has a density of 3.75g/cm3. if it has a mass of 12.1 g and a diameter of 8.22 cm, what is its height?
    15·1 answer
  • Consider the reaction: H2(g) + Cl2(g) --> 2HCl(g)
    12·1 answer
  • WITCH IS MADE BY WEATHERING ASH SEDEMENTS MAGMA OR MINERALS
    13·1 answer
  • Carbon atom is tetravalent in nature. How many hydrogen atoms can bind to one carbon atom?
    13·1 answer
  • What is the science definition of conductive
    5·1 answer
  • a cylinder container is filled with air. its radius is 6cm and its height is 3.5cm. what is the volume of the air inside?
    9·1 answer
  • The temperature of a sample of gas in a steel tank at 0.30 ATM at 25 Celsius if the pressure W20.59 ATM what would be the final
    9·1 answer
  • What did Asoka do for convicted murderers?
    12·1 answer
  • How does a difference in 1 pH unit change in terms of H+ concentration? Ex: How does a pH of 3 differ from the pH of 4? Which on
    14·1 answer
  • What is derived from sheep and goats that is used in break fluid
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!