Liquid crystal displays make use of __________
Fill in the blank(s) with correct word
polarization
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In the context of Earth's climate history, what do we mean by snowball Earth?
A) It refers to one or more deep ice ages that occurred hundreds of millions of years ago. B) This term is used to describe all the ice ages that have occurred in the past few million years. C) It refers to a time when polar regions had much more snowfall than normal. D) It is what we expect to see happen on Earth in about a billion years.
Structure 1 with member BC of length L/2 has force P1 applied at joint C. Structure 2 with member BC of length L has force P2 applied at C. Both structures have constant flexural rigidity EI. If the ratio of the applied forces P1/P2 5 5/2, the ratio of the joint B reactions RB1/RB2 is approximately:
(A) 1
(B) 5/4
(C) 3/2
(D) 2
Red light with a wavelength of 650. nm travels from air into a liquid with an index of 1.33. What is the frequency and wavelength in the liquid?
What will be an ideal response?
Why can studies of carbon isotopes be used to detect the presence of past biological activity in rocks?
A) living organisms absorb only the most common carbon isotope B) living organisms remove all carbon from rocks C) living organisms absorb certain carbon isotopes more easily than others D) carbon isotopes are found only in living organisms