In a wave, the distance from peak to peak is called the wave's ________
Fill in the blank(s) with correct word
wavelength
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This diagram shows how light from a binary star system would travel to Earth if the speed of light were not constant. What is its observational significance?
A) It tells us that if the speed of light were not the same for everyone, then we would not necessarily see binary stars as distinct objects. B) It shows that time runs slower for fast-moving objects. C) It shows that motion is relative. D) It shows that observers in different reference frames will not necessarily agree when two events are simultaneous.
A steam engine is operating at its theoretical maximum efficiency of 60%. If the waste heat has a temperature of 100°F (38°C), what is the temperature of the boiler?
A. 350°C B. 94°C C. 225°C D. 504°C E. 775°C
The latest observations suggest the ratio of matter to energy is about
A) 24/73. B) 24/76. C) 3/24. D) 27/73. E) 3/97.
How can the accuracy of a measurement be increased?