What are the similarities and differences between the Kelvin and Fahrenheit temperature scales? Identify the freezing point of water on both scales
What will be an ideal response?
The Fahrenheit scale is an archaic scale that has no obvious starting point. The Kelvin scale was devised to begin at the lowest possible temperature in the universe. In Fahrenheit the freezing point of water is 32, in Kelvin it's 273.
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The assumption of homogeneity states that
a. the universe looks the same at all epochs. b. the universe looks the same from all locations over sufficiently great distances. c. the universe looks the same in all directions over sufficiently great distances. d. all of the above e. none of the above
Two flat 4.0 cm × 4.0 cm electrodes carrying equal but opposite charges are spaced 2.0 mm apart with their midpoints opposite each other. Between the electrodes but not near their edges, the electric field strength is 2.5 × 106 N/C
What is the magnitude of the charge on each electrode? (?0 = 8.85 × 10-12 C2/N ? m2) A) 35 nC B) 18 nC C) 16 nC D) 30 nC
Which of the following is not produced by plate tectonics?
a. mid-ocean rifts b. rift valleys c. the ring of fire d. the Appalachian Mountains e. Earth's magnetic field
The elapsed time between two successive crossings of the same meridian by a star other than the Sun is known as the ______________ day
Fill in the blank(s) with correct word