It is difficult to use light from distant galaxies to compute the true physical distance to those galaxies today because the Universe has expanded since it was emitted.
Answer the following statement true (T) or false (F)
True
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Vision Problems: Olga is nearsighted and cannot see things beyond 90 cm cm from her eyes. What is the refractive power of the contact lenses that will enable her to comfortably see distant buildings clearly?
A. +1.1 diopters B. -1.1 diopters C. -1.7 diopters D. -2.2 diopters E. +2.2 diopters
Which of the following is NOT an example of an animated element?
A. rotating images B. 3D images C. dynamic content D. All of the above are animated elements.
A hydrogen atom is in the 6h state. Which of the following could be an orbital quantum number?
A) 5 B) 6 C) 7 D) 8 E) 9
A pipe is open at both ends. The distance from a node to its adjacent antinode is equal to _______
a. 0.25? b. 0.5? c. 1.25? d. 1.5?