When scattering 3.28 Angstrom X-rays off a crystal an interference maximum occurs at a scattering angle of 23.0 degrees. At what angle does the second maximum occur?
A. 51.3o
B. 46.0o
C. 34.5o
D. there is no second maximum.
A. 51.3o
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Which of the following composite materials could be recycled by melting the shredded composite and form recycled pellets with uniform properties?
(a) Epoxy matrix and carbon fibers (b) PP matrix and glass fibers (c) PP matrix and PP fibers (d) PP matrix and PE fibers
Two coherent sound waves will constructively interfere when the path difference is the wavelength times what?
A) half an integer B) an integer C) half an odd integer D) an even integer plus 1/2
A “free” electron and a “free” proton are placed in an identical electric field. Is the following statement true or false?
The magnitude of the acceleration of the electron is greater than that of the proton.
1.False 2.TrueConsider a situation where two moving objects collide, stick to each other, and move off together. The energy stored in a pile driver is an example of gravitational potential energy
Indicate whether the statement is true or false