subject
Physics, 08.08.2019 23:20 calvinpaul1966

What would you say to a friend who made this statement, “the visible-light spectrum of the sun shows weak hydrogen lines and strong calcium lines. the sun must therefore contain more calcium than hydrogen.”?

ansver
Answers: 3
Show answers

Other questions on the subject: Physics

image
Physics, 22.06.2019 03:30, sere50
The focal length of a relaxed human eye is approximately 1.7 cm. when we focus our eyes on a close up object, we can change the refractive power of the eye by about 16 diopters. (a) does the refractive power of our eyes increase or decrease by 16 diopters when we focus closely? explain. (b) calculate the focal length of the eye when we focus closely.
Answers: 3
continue
image
Physics, 22.06.2019 04:20, marshallmattah
Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz. what wavelength is produced?
Answers: 2
continue
image
Physics, 22.06.2019 11:00, sudotoxic
Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?
Answers: 2
continue
image
Physics, 22.06.2019 18:00, NotYourStudent
Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point
Answers: 1
continue
You know the right answer?
What would you say to a friend who made this statement, “the visible-light spectrum of the sun shows...

Questions in other subjects:

Konu
Social Studies, 25.12.2019 22:31
Which statement best summarizes the graph, if p is price and q is quantity? as the supply for a product rises, the supply remains constant. as the price falls, the supply increase...
Konu
Business, 25.12.2019 22:31
Aphysical inventory of liverpool company taken at december 31 reveals the following. per unit item units cost market audio equipment receivers 345 $ 90 $ 98
Konu
Social Studies, 25.12.2019 22:31
If y and m are constant and v doubles, the quantity equation implies that the price level a. more than doubles. b. falls to half its original level. c. does no...
Konu
Physics, 25.12.2019 22:31
Arectangular garden bed measures 24 feet by 7 feet. a water faucet is located at one corner of the garden bed. a hose will be connected to the water faucet. the hose must be long e...
Konu
Physics, 25.12.2019 22:31
A306 g cart moves on a horizontal, frictionless surface with a constant speed of 14.2 cm/s. a 76.3 g piece of modeling clay is dropped vertically onto the cart. if the clay sticks...
Konu
Business, 25.12.2019 22:31
Consumption = $1,000; investment = $200; net exports = -$50; taxes = $230; private saving = $225; and national saving = $150. 56. refer to scenario 26-3. for this economy, gov...
Konu
Business, 25.12.2019 22:31
If you ordered a tv commercial to run on a local tv station that could reach 500,000 households for a cost of $1,000, what would your cpm be? a. $1.00 b. $2.00...
Konu
Business, 25.12.2019 22:31
How do economists sometimes measure physical capital in a country? (1 point) the amount of savings that the citizens have in the bank the amount of roads and bridges per capita th...
Konu
Business, 25.12.2019 22:31
Product costs estimated using the sequential method of cost allocation a. the first step is to develop a reciprocal cost equation. b. the first step is to alloc...
Konu
Business, 25.12.2019 22:31
Valve company has offered to sell motor 10,000 units of part m-l for $16.50 per unit. if motor accepts the offer, some of the facilities presently used to manufacture part m-l coul...
More questions: Physics Another questions
See results (0)