I have posted this question before and they got it wrong, the answers are NOT a.) 22.11 and b.) 48.83
Homework Answers
A] By Brags law,
2 d* sin theta = n*lambda where symbols have usual meaning
theta1 = arcsin (lambda/2d) where lambda = hc/E = 1240 eVnm/15e3eV = 0.08267 nm
= arcsin (0.08267/0.220)
= 22.07 degree
B] second order diffraction , theta = arcsin (lambda/2d) where lambda = hc/E = 1240 eVnm/15e3eV = 0.08267 nm
= arcsin (0.08266667/0.220)
= 48.72 degree
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I have posted this question before and they got it wrong, the
answers are NOT a.)...
Constants Part A X rays diffract from a crystal in which the spacing between atomic planes...
Constants Part A X rays diffract from a crystal in which the spacing between atomic planes is 0.178 nm. The second- order diffraction occurs at 47.0° What is the angle of the first-order diffraction? Submit Request Answer
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please answer it correctly as
I posted it before and it's wrong.
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Use the References to access important values if needed for this question. metal potassium crystallizes in a body centered cubic unit cell. When X-rays with ž. - 1.937 A are used, the second-ord...
Use the References to access important values if needed for this question. metal potassium crystallizes in a body centered cubic unit cell. When X-rays with ž. - 1.937 A are used, the second-order Bragg reflection from a set of parallel planes in a(n) potassium crystal is observed at an angle 0-21.32°. If the spacing between these planes corresponds to the unit cell length (d-a), calculate the edge length of the potassium unit cell. Submit Answer Retry Entire Group 9 more...
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Please answer correctly, I posted this question previously and got the wrong answer. Review I Constants...
Please answer correctly, I posted this question previously and got
the wrong answer.
Review I Constants I Periodic Table PartA A block with a mass of 0.30 kg is attached to a horizontal spring. The block is pulled back from its equilibrium position until the spring exerts a force of 1.1 N on the block. When the block is released, it oscillates with a frequency of 1.2 Hz. How far was the block pulled back before being released? Express your...
Please answer all. Correct answers only please. I posted this before and got the wrong answer....
Please answer all. Correct answers only please. I posted this
before and got the wrong answer. Keep in mind that i am limited on
how many questions i can post a month. Please fill in the blanks
with the correct answers. Thanks kindly.
Measurement ofthe rectangularsolid with themetrierlerle Deviation Absolute Length from theDeviation Ruler Readings Left End Right End Mean 40cm|45 | 5 | 0 31 |36 | 5 | 0 | 3164 |59 | 5 | 0 50 58...
I got -0.028 and I got -0.0028 those are wrong answers I need help in this...
I got -0.028 and I got -0.0028
those are wrong answers I need help in this questions please.
Express your answer using two significant figures. Constants | Periodic Table A transverse wave on a string is given by the formula D(z, t 0.13 sin(3.2 -49.0t), where D and r are in nm and t is in s. D(0.56m, 6.2 x 10-2s)- 0.028 ILI Submit Incorrect: One attempt remaining: Try Again Part B 2 s, what is the (transverse) velocity of...
I tried the following numbers and got them all wrong. Please try again if you got...
I tried the following numbers and got them all wrong.
Please try again if you got the same number.
285 (WRONG)
284.96 (WRONG)
284.98 (WRONG)
We were unable to transcribe this imageS$ 14% Part (g) Calculate the angle, in degrees counterclockwise with respect to the positive x-axis, of the net force acting on the charge at the lower left corner of the rectangle Grade Summa Deductions 2490 Potential ry θ 285 76% cos0 tan() | π acosO 789HOME Submissions Attempts...
Constants Part A X rays diffract from a crystal in which the spacing between atomic planes is 0.178 nm. The second- order diffraction occurs at 47.0° What is the angle of the first-order diffraction? Submit Request Answer
Please answer correctly, posted these before and got wrong
answers.
Problem 14.23 l Review 1 Constants 1 Periodic Table Y Part B The position of a 46 g oscillating mass is given by z() (1.8 cm) cos 13t, where t is in Determine the period Express your answer in seconds. seconds. T-0.68 Submit Previous Answers Request Answer Incorrect:; Try Again; 5 attempts remaining Part F Determine the velocity at t-0.41 s Express your answer in meters per second. m/s Submit...
please answer it correctly as
I posted it before and it's wrong.
Running on a treadmill is slightly easier than running outside because there is no drag force to work against. Suppose a 60 kg runner completes a 5.0 km race in 20 minutes. Part A Determine the drag force on the runner during the race. Suppose that the cross section area of the runner is 0.72 m² Express your answer with the appropriate units. UA ? D = Value...
Use the References to access important values if needed for this question. metal potassium crystallizes in a body centered cubic unit cell. When X-rays with ž. - 1.937 A are used, the second-order Bragg reflection from a set of parallel planes in a(n) potassium crystal is observed at an angle 0-21.32°. If the spacing between these planes corresponds to the unit cell length (d-a), calculate the edge length of the potassium unit cell. Submit Answer Retry Entire Group 9 more...
+ X-Ray Diffraction 25 of 30 > A Review Constants Periodic Table Part A X-ray diffraction can be used to obtain structural information of crystalline compounds. X-ray wavelengths are about the same size as the space between atoms in solids. X-rays aimed at a crystal are diffracted by the atoms in the crystalline lattice. This results in an X-ray diffraction pattern, which can be seen on a detector placed behind the crystal. X-rays with a wavelength of 1.58 A scatter...
Please answer correctly, I posted this question previously and got
the wrong answer.
Review I Constants I Periodic Table PartA A block with a mass of 0.30 kg is attached to a horizontal spring. The block is pulled back from its equilibrium position until the spring exerts a force of 1.1 N on the block. When the block is released, it oscillates with a frequency of 1.2 Hz. How far was the block pulled back before being released? Express your...
Please answer all. Correct answers only please. I posted this
before and got the wrong answer. Keep in mind that i am limited on
how many questions i can post a month. Please fill in the blanks
with the correct answers. Thanks kindly.
Measurement ofthe rectangularsolid with themetrierlerle Deviation Absolute Length from theDeviation Ruler Readings Left End Right End Mean 40cm|45 | 5 | 0 31 |36 | 5 | 0 | 3164 |59 | 5 | 0 50 58...
I got -0.028 and I got -0.0028
those are wrong answers I need help in this questions please.
Express your answer using two significant figures. Constants | Periodic Table A transverse wave on a string is given by the formula D(z, t 0.13 sin(3.2 -49.0t), where D and r are in nm and t is in s. D(0.56m, 6.2 x 10-2s)- 0.028 ILI Submit Incorrect: One attempt remaining: Try Again Part B 2 s, what is the (transverse) velocity of...
I tried the following numbers and got them all wrong.
Please try again if you got the same number.
285 (WRONG)
284.96 (WRONG)
284.98 (WRONG)
We were unable to transcribe this imageS$ 14% Part (g) Calculate the angle, in degrees counterclockwise with respect to the positive x-axis, of the net force acting on the charge at the lower left corner of the rectangle Grade Summa Deductions 2490 Potential ry θ 285 76% cos0 tan() | π acosO 789HOME Submissions Attempts...
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