subject

Physics, 22.04.2021 02:10 nikki319

Star shows a VT = 55 km/s and an observed Hydrogen Alpha of 656.25 nm. Is it moving towards or away from us?

What is its velocity?

Star shows a VT = 65 km/s and an observed Hydrogen Alpha of 656.2 nm.

Is it moving towards or away from us?

What is its velocity?

Star shows a VT = 72 km/s and an observed Hydrogen Alpha of 656.49 nm.

Is it moving towards or away from us?

What is its velocity?

Star shows a VT = 10 km/s and an observed Hydrogen Alpha of 656.15 nm.

Is it moving towards or away from us?

What is its velocity?

ansver

Answers: 1

Show answers

Another question on Physics

question

Physics, 22.06.2019 06:30

The energy of a photon was found to be 3.38 × 10–19 j. planck’s constant is 6.63 × 10–34 j • s. which color of light corresponds to this photon?

Answers: 2

question

Physics, 22.06.2019 16:00

From the perspective of an employee that effective channeling of work related information and concerns

Answers: 1

question

Physics, 22.06.2019 16:50

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.

Answers: 1

question

Physics, 23.06.2019 01:30

Hydroelectricity provides about 7 percent of the electricity generated in the united states. (a) explain how a hydroelectric power plant converts energy stored in water into electricity. (b) identify two factors that determine the amount of electricity that can be generated by an individual hydroelectricity power plant. (c) describe the two main types of land-based hydroelectric power plants. (d) describe two economic advantages and two environmental disadvantages of hydroelectricity.

Answers: 1

You know the right answer?

Star shows a VT = 55 km/s and an observed Hydrogen Alpha of 656.25 nm. Is it moving towards or awa...

Questions

question

Mathematics, 21.02.2020 05:12

A geological study indicates that an exploratory oil well drilled in a certain region should strike oil with probability 0.1. Assume that striking oil...

question

Mathematics, 21.02.2020 05:12

A hexagonal prism has a height of 15 inches and a base area of 20 square inches. The volume of the prism is 300 square inches.” Identify and correct t...

question

Chemistry, 21.02.2020 05:12

A 6.55 g sample of aniline (C_{6}H_{5}H_{2}, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter. If the temperature rose by 32.9°C, use the...

question

Business, 21.02.2020 05:12

A BBB-rated corporate bond has a yield to maturity of 10.0 %. A U. S. treasury security has a yield to maturity of 8.4 %. These yields are quoted as A...

question

Physics, 21.02.2020 05:12

A 2 kg cookie tin accelerated at 3 m/s2 towards N-E at an angle of 50o off E direction over a friction less horizontal surface. The acceleration is ca...

question

Social Studies, 21.02.2020 05:12

A relationship between two variables is described below. We can think of one variable as helping to explain the other. Is the indicated variable the e...

question

Mathematics, 21.02.2020 05:12

Find the equation of a line having slope -8 and y intercept -3...

question

Physics, 21.02.2020 05:12

Explain why ice melts in a cup at room temperature, in terms of energy transfer and the second law of thermodynamics....

question

Mathematics, 21.02.2020 05:12

2.26Use the postulates and theorems of Boolean algebra to find an MSOP logic expression for each of the following functions. (a)f(a, b, c) = ∑m(1,4,5,...

question

Mathematics, 21.02.2020 05:13

Please help me with this, there’s a picture of the question

question

Mathematics, 21.02.2020 05:13

What is -2 1/4x+3 7/12x-4 2/3 simplified...

question

Chemistry, 21.02.2020 05:13

3. A measurement of the freezing temperature of a solution allowsyou to calculate the concentration of the solution. What else do you need to measure...

question

Physics, 21.02.2020 05:13

In the laboratory, a spectral line of an element has a wavelength of 5000 Angstroms. What would be the measured wavelength of that line in the spectru...

question

Physics, 21.02.2020 05:13

A machine launches a tennis ball at an angle of 25o above the horizontal at a speed of 14 meters per second. The ball returns to level ground. Which c...

question

Mathematics, 21.02.2020 05:13

The Martinez family went to a play and paid $13 for 1 adult and 4 children. The Hernandez family went to the same play and paid $14 for 3 adults and 2...

question

Business, 21.02.2020 05:13

A furniture cabinet maker produces two types of cabinets that house and hide plasma televisions. The Mission-style cabinet requires $340 in mate...

question

Chemistry, 21.02.2020 05:13

Aluminum metal reacts with hydrochloric acid to form aluminum chloride according to the reaction below. If 30.8 grams of aluminum react with 84 grams...

question

Chemistry, 21.02.2020 05:13

8. What volume (ml) of a 5.45 M lead nitrate solution must be diluted to 820.7 ml to make a 1.41 M solution of lead nitrate? A) 212...

question

History, 21.02.2020 05:14

Which of the following is true about women's participation in the French Revolution? A.) Women took on leading roles in the revolutionary...

question

Mathematics, 21.02.2020 05:14

A rectangular region is removed from another rectangular region to create the shaded region shown below. Find the area of the shaded region. 8m, 12m,...

More questions: Physics Another questions

Questions on the website: 13722362