Homework Answers
A stellar spectrum can reveal many properties of stars, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.
so, ALL THE ABOVE IS CORRECT
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an absorption Tine Spectrum Question 4 Spectra can be used to measure what properties of a...
What are the most prominent absorption lines you would expect to find in the spectrum of...
What are the most prominent absorption lines you would expect to find in the spectrum of a star with a surface temperature of (a) 35,000 K, (b) 2800 K, and (c) 5800 K (like the Sun?) Briefly describe why these stars have such different spectra even though they have essentially the same chemical composition.
I Question 4 (6 marks) Below you can find the Absorption spectra for 3 different dyes....
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Question 4 (6 marks) Below you can find the Absorption spectra for 3 different dyes. (a) Determined and calculate the molar absorptivity for each of the three dyes (the concentrations are shown on the top left of each spectrum and the structures in p.7). (b) Explain how the differences in de between the red and blue dyes relate to the different colours of the dyes. Identify the chemical features of each molecule that contribute to this difference. (c) Can...
answer question 4 opts Select all characteristics of microstructure that affect Materials properties Grain Size Crystal...
answer question 4
opts Select all characteristics of microstructure that affect Materials properties Grain Size Crystal Structure Crysal Defects None of the above Question 4 6 pts Atle line is a constant temperature line in the phase diagram that connects two single phases adjacent to a two phase region O two regions adjacent to a single phase region A single phase and a two phase region None of the above Question 5 6 pts Select all mechanical properties Wear resistance...
Question 12 0/4 p Which of the following properties indicates the presence of weak intermolecular forces...
Question 12 0/4 p Which of the following properties indicates the presence of weak intermolecular forces in a liquid? a high heat of vaporization a high critical temperature a high vapor pressure o high bodling point None of the above
Question 4 1 pts Which are unique properties of water when compared to most other solvents?...
Question 4 1 pts Which are unique properties of water when compared to most other solvents? None of the statements are correct Low boiling point All statements are correct O High melting point Low surface tension
CONCEPT QUESTION 3.25 A spring balance with a linear scale can be used to measure mass...
CONCEPT QUESTION 3.25 A spring balance with a linear scale can be used to measure mass because (A) springs are strong. (B) metal springs can be considered weightless. (C) a spring force is linear in spring constant due to its strength. (D) the spring force is linear in displacement through Hooke's law. (E) none of the above. We were unable to transcribe this imageс пен CONCEPT QUESTION 3.21 The maximum force of friction between two surfaces is! (A) independent of...
A resonance tube can be used to measure the speed of sound in air. A tuning...
A resonance tube can be used to measure the speed of sound in air. A tuning fork is held above the opening of the tube and struck, while the far end of the tube is lengthened or shortened. Resonances (loudnesses) are heard at a series of tube lengths, L, which are carefully measured. resonance tube The speed of sound in air is determined by measuring the distance between two consecutive resonances. A data set for a tuning fork with a...
Question 5 (5 points) ✓ Saved Total surplus can be used to measure a market's efficiency....
Question 5 (5 points) ✓ Saved Total surplus can be used to measure a market's efficiency. is the sum of consumer and producer surplus. is the to value to buyers minus the cost to sellers. O All of the above are correct. Question 6 (5 points) Suppose that Dawson, Joe, and Canan are bidding in an auction for a video of Charlie Chaplin's first movie. Each has in mind a maximum a will bid. This maximum is called
Question #10 (4%) Which of the following are not used to measure lineal distances? (A)LVDT (B)...
Question #10 (4%) Which of the following are not used to measure lineal distances? (A)LVDT (B) Caliper (C) Micrometer (D) Proving Ring (E) Dial Gauge Question #11 (4%) Fly Ash and Silica Fume are examples of (A) Concrete Admixtures (B) Supplementary Cementitious Materials (C) Steel Feedstock (raw ingredients) (D) Natural Pozzolans (E) None of the above Question #12 (4% As the water-cement ratio in PCC increases, which of the following occurs as a result? (A) Strength increases (B) Permeability increases...
QUESTION 1 What is inulin used for? To measure tubular reabsorption. To measure urine osmolarity. To...
QUESTION 1 What is inulin used for? To measure tubular reabsorption. To measure urine osmolarity. To measure urine volume. To measure renal clearance QUESTION 2 All are products of glucose catabolism EXCEPT: Oxygen Carbon dioxide Water Adenosine triphosphate. QUESTIONS Ketone bodies are metabolized in the heart and skeletal muscle to produce 2 acetyl CoA molecules True QUESTION 4 What are renal calcul Kidney stones Hypertension
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Question 4 (6 marks) Below you can find the Absorption spectra for 3 different dyes. (a) Determined and calculate the molar absorptivity for each of the three dyes (the concentrations are shown on the top left of each spectrum and the structures in p.7). (b) Explain how the differences in de between the red and blue dyes relate to the different colours of the dyes. Identify the chemical features of each molecule that contribute to this difference. (c) Can...
answer question 4
opts Select all characteristics of microstructure that affect Materials properties Grain Size Crystal Structure Crysal Defects None of the above Question 4 6 pts Atle line is a constant temperature line in the phase diagram that connects two single phases adjacent to a two phase region O two regions adjacent to a single phase region A single phase and a two phase region None of the above Question 5 6 pts Select all mechanical properties Wear resistance...
Question 12 0/4 p Which of the following properties indicates the presence of weak intermolecular forces in a liquid? a high heat of vaporization a high critical temperature a high vapor pressure o high bodling point None of the above
Question 4 1 pts Which are unique properties of water when compared to most other solvents? None of the statements are correct Low boiling point All statements are correct O High melting point Low surface tension
CONCEPT QUESTION 3.25 A spring balance with a linear scale can be used to measure mass because (A) springs are strong. (B) metal springs can be considered weightless. (C) a spring force is linear in spring constant due to its strength. (D) the spring force is linear in displacement through Hooke's law. (E) none of the above. We were unable to transcribe this imageс пен CONCEPT QUESTION 3.21 The maximum force of friction between two surfaces is! (A) independent of...
Question 5 (5 points) ✓ Saved Total surplus can be used to measure a market's efficiency. is the sum of consumer and producer surplus. is the to value to buyers minus the cost to sellers. O All of the above are correct. Question 6 (5 points) Suppose that Dawson, Joe, and Canan are bidding in an auction for a video of Charlie Chaplin's first movie. Each has in mind a maximum a will bid. This maximum is called
Question #10 (4%) Which of the following are not used to measure lineal distances? (A)LVDT (B) Caliper (C) Micrometer (D) Proving Ring (E) Dial Gauge Question #11 (4%) Fly Ash and Silica Fume are examples of (A) Concrete Admixtures (B) Supplementary Cementitious Materials (C) Steel Feedstock (raw ingredients) (D) Natural Pozzolans (E) None of the above Question #12 (4% As the water-cement ratio in PCC increases, which of the following occurs as a result? (A) Strength increases (B) Permeability increases...
QUESTION 1 What is inulin used for? To measure tubular reabsorption. To measure urine osmolarity. To measure urine volume. To measure renal clearance QUESTION 2 All are products of glucose catabolism EXCEPT: Oxygen Carbon dioxide Water Adenosine triphosphate. QUESTIONS Ketone bodies are metabolized in the heart and skeletal muscle to produce 2 acetyl CoA molecules True QUESTION 4 What are renal calcul Kidney stones Hypertension
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