Which path does the light ray follow when it travels from a less dense substance into one that is denser?
A. It does not bend.
B. It is reflected back into the low density material.
C. It bends toward the normal.
D. It bends away from the normal.
Answer: C
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In a hurricane, most fatalities occur from
A) winds. B) tornadoes. C) the storm surge. D) freshwater flooding.
Which of the following regarding the dimensions of the known universe, the Milky Way, and our solar system is not true?
A) On average, the moon is 384,000 km (238,866 mi) from Earth. B) Earth is closest to the sun during the month of June. C) The Milky Way is approximately 100,000 light-years from side to side. D) The known universe stretches approximately 12 billion light years in all directions. E) On average, the Sun is approximately 150 million km (93 million mi) from Earth.
As a polar-molecule liquid, water has special physical properties, including ________.
A. high cohesion B. high heat capacity and latent heat C. high surface tension D. high dissolution properties E. All of these are correct.
Earth is very different from its neighbors because it
A. contains water. B. is tectonically active. C. generates heat. D. can support life. E. All of these choices are correct.