Estimate the energy flux of a 0.5mW red (lambda = 630nm) laser pointer? explain all your...
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Estimate the energy flux of a 0.5mW red (lambda = 630nm) laser
pointer?
explain all your...
28. A red laser pointer emits light with a wavelength of 650 nm. a. What is...
28. A red laser pointer emits light with a wavelength of 650 nm. a. What is the frequency of this light? b. What is the energy of 1 mole of these photons? 29. What are all the possible values for I and my when n=3?
1. Suppose you bought a red laser pointer (a cheap one you'd buy to play with a cat, not something you'd buy to try to light something on fire 3 miles away) (a) Look up online typical val...
1. Suppose you bought a red laser pointer (a cheap one you'd buy to play with a cat, not something you'd buy to try to light something on fire 3 miles away) (a) Look up online typical values for the power and wavelength of this kind of laser. (b) Estimate the radius of the beam. From this and the power in part (a), find the intensity of the laser light. (c) What are the electric field amplitude and the magnetic...
The luggage handing branch at the airport wants to estimate the mean weight among all checked...
The luggage handing branch at the airport wants to estimate the mean weight among all checked suitcases. A random sample of 47 checked suitcases were carefully weighed (to the nearest pound). The sample results found a mean of 40.6 pounds and a standard deviation of 9.5 pounds. a. Estimate with 90% confidence the mean weight of all checked luggage. (18) b. Explain fully what is meant when you say, "you have 90% confidence" in your interval in part A.
Answer ALL parts a)-c). a) Explain what is meant by the term ionisation energy b) The...
Answer ALL parts a)-c). a) Explain what is meant by the term ionisation energy b) The table below gives the values of the first ionisation energies for 12) selected elements. Comment on and interpret the variations evident in these data. Element Na Mg Al Si 1st lonisation Energy (kJ mo ) 494 736 577 786 1060 1000 19) What structures do the solid forms of the elements sodium, silicon and sulphur adopt under ambient conditions (i.e. standard temperature and pressure)?...
All answers were generated using 1,000 trials and native Excel functionality.) The Iowa Energy are scheduled to play against the Maine Red Claws in an upcoming game in the National Basketball Associat...
All answers were generated using 1,000 trials and native Excel
functionality.) The Iowa Energy are scheduled to play against the
Maine Red Claws in an upcoming game in the National Basketball
Association (NBA) G League. Because a player in the NBA G League is
still developing his skills, the number of points he scores in a
game can vary substantially. Assume that each player’s point
production can be represented as an integer uniform random variable
with the ranges provided in...
If all other factors are constant, explain in detail (in your own words) what happens to...
If all other factors are constant, explain in detail (in your own words) what happens to the standard error of estimate as the correlation moves closer to zero. The regression equation is intended to be the "best fitting" straight line for a set of data. What is the criterion for the best fitting? Explain in detail in your own words. Note: While the majority of your answers should be in your own words, you may cite sources to support your...
prelab /postlab all questions please Questions 1. For the reaction at 20°C, NH3(aq) + H+ (aq)...
prelab /postlab all questions please
Questions 1. For the reaction at 20°C, NH3(aq) + H+ (aq) NH4(aq), the equilibrium constant is calculated to be K = to 4.5 x10%. CHAT] A. Write the Equilibrium expression for this reaction. Keq = ỞNH TH] B. From the size of the number for Keq, does the equilibrium lie to the left or to the right? Right 2. If the reaction between iron(III) ion and thiocyanate ion, Fe3+ (aq) + SCN (aq) → FeSCN2+(aq),...
Answer all below questions. Show your calculations, and where asked, explain your answers. A physiologist wishes...
Answer all below questions. Show your calculations, and where asked, explain your answers. A physiologist wishes to compare the effects of two concentrations of muscle relaxant on the quadriceps muscle in long-distance male runners. After acquiring ethical clearance, the researcher randomly selects 30 female long-distance runners (LDR) from a national list that included all male and female registered LDRs. The researcher later marks a 7mm long muscle on the thigh (the rectus femoris which occupies the middle of the thigh)...
24. The energy rewed during the splining or 10. Which of the ding material transform fusing...
24. The energy rewed during the splining or 10. Which of the ding material transform fusing of atomic aclelis cecelery to hestene a) Chemical egy by Electrical energy het bell e) Noclear en electrice Heather d) Electric guitar 25. Which of the following appliances changes 31. Which of the following appliances asform electrical energy to und energy! (s) clectrical energy to sound energy Refrigerator motor It Electric guitar a) Cooker b) Guia Il Radio Microwave a) I only d) Electricire...
28. A red laser pointer emits light with a wavelength of 650 nm. a. What is the frequency of this light? b. What is the energy of 1 mole of these photons? 29. What are all the possible values for I and my when n=3?
1. Suppose you bought a red laser pointer (a cheap one you'd buy to play with a cat, not something you'd buy to try to light something on fire 3 miles away) (a) Look up online typical values for the power and wavelength of this kind of laser. (b) Estimate the radius of the beam. From this and the power in part (a), find the intensity of the laser light. (c) What are the electric field amplitude and the magnetic...
Answer ALL parts a)-c). a) Explain what is meant by the term ionisation energy b) The table below gives the values of the first ionisation energies for 12) selected elements. Comment on and interpret the variations evident in these data. Element Na Mg Al Si 1st lonisation Energy (kJ mo ) 494 736 577 786 1060 1000 19) What structures do the solid forms of the elements sodium, silicon and sulphur adopt under ambient conditions (i.e. standard temperature and pressure)?...
All answers were generated using 1,000 trials and native Excel
functionality.) The Iowa Energy are scheduled to play against the
Maine Red Claws in an upcoming game in the National Basketball
Association (NBA) G League. Because a player in the NBA G League is
still developing his skills, the number of points he scores in a
game can vary substantially. Assume that each player’s point
production can be represented as an integer uniform random variable
with the ranges provided in...
prelab /postlab all questions please
Questions 1. For the reaction at 20°C, NH3(aq) + H+ (aq) NH4(aq), the equilibrium constant is calculated to be K = to 4.5 x10%. CHAT] A. Write the Equilibrium expression for this reaction. Keq = ỞNH TH] B. From the size of the number for Keq, does the equilibrium lie to the left or to the right? Right 2. If the reaction between iron(III) ion and thiocyanate ion, Fe3+ (aq) + SCN (aq) → FeSCN2+(aq),...
24. The energy rewed during the splining or 10. Which of the ding material transform fusing of atomic aclelis cecelery to hestene a) Chemical egy by Electrical energy het bell e) Noclear en electrice Heather d) Electric guitar 25. Which of the following appliances changes 31. Which of the following appliances asform electrical energy to und energy! (s) clectrical energy to sound energy Refrigerator motor It Electric guitar a) Cooker b) Guia Il Radio Microwave a) I only d) Electricire...
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