A(n) _______________ is an atom that has gained or lost one or more electrons
Fill in the blank(s) with correct word
ion
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A physics student is riding on a train traveling north. Having read about inertia, the student performs an experiment with a golf ball. He reaches over the aisle and drops the ball from rest. Instead of hitting the floor directly below the student's hand, it hits to the north, i.e., forward of that position. Which of the following might be the cause for this to happen?
a. The train is moving at constant velocity. c. The train is slowing down. b. The train is speeding up. d. Whatever the cause, it cannot be any of the answers given.
Diamond is transparent to the visible spectrum. Gives the index of refraction at 589 nm. Calculate the speed of 589 nm light in diamond.
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A surface is coated with a material having index of refraction 1.41 . If light in air has a wavelength of 701 nm and is normally incident on this surface, and it is found through interference effects with this light that the surface is 11 wavelengths thick, which of the following is the thickness of the surface?
a. 4.5E–8 m b. 5.5E–6 m c. 2.7E–6 m d. 1.4E–6 m e. 2.1E–5 m
The two most abundant elements in Earth's crust are
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