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Concept explainers
A fun fact: You can use a microwave oven and a bar of chocolate to measure the speed of light. Really! Microwaves are electromagnetic waves, just like visible light. The difference is the wavelength of these waves: For visible light, the wavelengths are in the neighborhood of
If your teacher is unusually adventurous, he or she might bring in a microwave and chocolate bars, in which case you can perform the experiment on your own. Start with around 20 seconds, and make sure you take out the carousel: The chocolate has to stay stationary. (And now you know why a lot of microwaves have a carousel: Food heats more thoroughly at the spots corresponding to half of the wavelength.)
In case no microwave and chocolate are available, I did the experiment at home and took a picture for you, which is reproduced below. It’s a life-size scale, so you can measure the distance between the melted spots with a ruler.
Convert the half-wavelength to meters. (Think about what the prefix “centi” means!)
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Chapter 1 Solutions
PATHWAYS TO MATH LITERACY (LL)W/CONNECT
- need help with part barrow_forwarddent Application X GA spinner is divided into five cox | + 9/26583471/4081d162951bfdf39e254aa2151384b7 A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below: Spinner Results Color Frequency Red 5 Blue 11 Green 18 Yellow 5 Purple 7 Based on these results, express the probability that the next spin will land on purple as a fraction in simplest form. Answer Attempt 1 out of 2 Submit Answer 0 Feb 12 10:11 Oarrow_forwardQuestion 4 Calculate the Moment about the point D in Nx m B 500 N A 2 m 300 N 10 E 1.2 m 0.5 m D 0.8 m 200 N Carrow_forward
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- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
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