Why were the first spectral lines detected on the sun

Assignment Help Physics
Reference no: EM13952293

Helium is named after the sun, "helios". So, it was discovered on the sun first. Why was it discovered on the sun before we knew about it here on Earth? Do we get our helium from the sun?

The book will talk about first detecting helium in a total solar eclipse and measuring the spectral lines of helium. I don't mean that.

Why were the first spectral lines detected on the sun, and not here on the Earth?

Reference no: EM13952293

Questions Cloud

Change the footer to display your name instead of adam smith : Create a column chart to show the graphical representation of the expenses, using the figure below as a guide. Create the chart on its own chart sheet, named Expense Report Chart. Do not include a legend but include the title "Expenses." Include d..
Write the coding for calculating bmi : Write the coding for calculating BMI.
Critically analyse the accounting softwares : You were meant to critically analyse the accounting softwares that are available in the Australian market. The analysis should cover.
What is the projects internal rate of return : Suppose that a project costs $3.5 million. It is expected to generate the following cash flows in the next 5 years: $1 million, 1.2 million, 1.3 million, 1.4 million. What is the project's internal rate of return?
Why were the first spectral lines detected on the sun : Helium is named after the sun, "helios". So, it was discovered on the sun first. Why was it discovered on the sun before we knew about it here on Earth? Do we get our helium from the sun?
What effect might the smith incident have : How might this whole situation have been handled in a more professional manner? What effect might the Smith incident have on the future relationship between Kathy Gray and Sam Weston
Is it ethical for judy to revise the costs as indicated : Garner Company requires its marketing managers to submit estimated cost behavior data on all requests for new products or expansions of a product line. Judy Oslo is a new manager. Her calculations show a fixed cost for a new project at $100,000 and a..
Minimum required rate of return-net present value : A company has a minimum required rate of return of 9%. It is considering investing in a project that costs $175,000 and is expected to generate cash inflows of $70,000 at the end of each year for 3 years. The approximate net present value of this pro..
How many orders will be made per year : The Miller Brewing. has developed a new type of Beer. The local distributor expects to increase his sales by 20% over the past year due to this new development. Last year's sales were $50,000 at a selling price of $100 per unit. What is the total cos..

Reviews

Write a Review

Physics Questions & Answers

  Evaluate the speed of the block after the bullet exits

A 3.1 kilogram block of wood sits on a table. A 3.0 gram bullet, fired horizontally at a speed of 450 meter per second, Evaluate the speed of the block immediately after the bullet exits

  Discover focal length of mirror and magnification

A clown is using a concave make-up mirror to get ready for a show and is 27 cm in front of the mirror. The image is 61 cm behind the mirror. Discover (a) the focal length of the mirror and (b) the magnification.

  Evaluate what is the mass of the fish

To weigh a fish, a person hangs a tackle box of mass 3.5 kilogramsand a cooler of mass 5 kilograms from the ends of a uniform rigidpole that is suspended by a rope attached to its center. What is the mass of the fish

  Determine the free-fall acceleration

What is the free-fall acceleration toward the sun at the distance of the earth's orbit? [The mean distance the earth is from the sun in its orbit is 1.50x10^11 m

  Given the following vectors a is 25lbs at an angle of 30

given the following vectors a is 25lbs at an angle of 30 degrees clockwise from the x-axis and b is 42lbs at an angle

  What are the position and speed of the puck

A hockey puck with mass 0.160 kg is at rest on the horizontal, frictionless surface of a rink. A player applies a force of 0.250 N to the puck, What are the position and speed of the puck at the end of that time

  Compute the magnification of the image formed by the lens

An object is placed to the left of a convex lens and on the optical axis. What is the magnification of the image formed by the lens

  Find the energy of a photon with this wavelength

Suppose a star with radius 8.30 108 m has a peak wavelength of 684 nm in the spectrum of its emitted radiation. Find the energy of a photon with this wavelength.

  By what factor would you expect the range to change

When a spring cannon is horizontal, above the ground by 0.83m. by what factor would you expect the range to change

  Speed of particle when string is parallel to electric field

A particle having charge q = +2.50 µC andmass m = 0.0100 kg is connected to a string that isL = 1.20 m long and is tiedto the pivot point P. The particle, string, and pivotpoint all lie on a frictionless horizontal table.

  Compute what is the post collision angular speed

A small blob of putty of mass m = 80.0 gram falls from the ceiling and lands on the outer rim of a turntable of radius R =15.0 centimeter, Compute what is the post collision angular speed of the turntable-putty system

  Find magnitude of acceleration as the elevator starts upward

You've always wondered about the acceleration of the elevators in the 101 story high Empire State Building. What is the magnitude of the acceleration as the elevator starts upward

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd