Which of the following may not be possible to determine with the powder method of x-ray diffraction?
(a) The presence of a material in a specimen with a known crystal structure
(b) The unit cell lattice parameters of a known crystal structure
(c) If a cubic crystal is simple, body-centered, or face-centered
(d) A previously unknown complex crystal structure
(d) A previously unknown complex crystal structure
You might also like to view...
At about what fraction of the speed of light do today's spacecraft travel?
A) 1/10 B) 1/100 C) 1/10,000 D) 1/1,000 E) 1/2
The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. The distance from the starting point is __________
Fill in the blank(s) with correct word
An object is at rest on the equator. Estimate its speed relative to the center of the Earth in m/s
1.less than 0.001 2.between 0.001 and 0.01 3.between 0.01 and 0.1 4.between 0.1 and 1 5.between 1 and 10 6.between 10 and 100 7.between 100 and 1,000 8.between 1,000 and 10,000 9.more than 10,000 10.Impossible to determine
What do the three black arrows represent?
A) the tidal force Earth exerts on the Moon B) the Moon's gravitational force at different points on Earth C) the direction in which Earth's water is flowing D) Earth's orbital motion