Physics, 03.07.2019 00:20 jetcythaop6qlax

Aflat-plate x-ray diffraction pattern was cuka radiation. it consisted of a series of spots arranged along a horizontal line containing the central spot and first-order layer lines above and below the central line. it was found that with a specimen-to-film distance of 30 mm the first order lines were 22.9 mm above and below the central spot. (a) calculate the spacing of the chain repeat c of the polymer crystals. (b) explain why only first-order layer lines are observed for this polymer and suggest how higher order lines may be obtained. (c) determine the angle through which the specimen would have to be tilted in order to obtain the (001) reflection on the diffraction pattern.

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 11:30

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

Answers: 1

Answer

Physics, 22.06.2019 12:40

Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Answers: 2

Answer

Physics, 22.06.2019 16:30

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?

Answers: 2

Answer

Physics, 22.06.2019 17:10

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .

Answers: 1

Answer

You know the right answer?

Aflat-plate x-ray diffraction pattern was cuka radiation. it consisted of a series of spots arranged...

Questions