- How couid you prove experimentaly that energy is associated with a wave?

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Find the value of A between 0° and 360° which satisfy 6sin^2A+ Sin A -1= 0? A vector of magnitude 20 is added to a vector of magnitude 25 the magnitude of this sum might be? Which of the following indicators would be yellow at pH 7 and blue at pH 10?
Why is thymol blue ? What is a Division 1 elementary school? The linear distance between two polluted streams on a map (Scale 1:67000) is 5 inches. What is the actual distance in Miles and Kilometers?