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Blababa [14]
3 years ago
5

Scientists described light as a wave because the results of many experiments with light demonstrated that light behaves as a wav

e. Light is now described as having properties of both a wave and a particle.
What is the most likely reason why this change was made?
A. Enough scientists voted to accept the change.
B. Data collected from many experiments could not be explained using waves.
C. A well-known scientist published a paper that described light as a particle.
D. A single experiment’s results demonstrated both wave and particle properties.
Physics
1 answer:
seropon [69]3 years ago
5 0
B and C are both correct.
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The time it will take the mega-ray blaster to hit the ground is 2.57 s.

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h = ut + \frac{1}{2}gt^2\\\\94 = 24t +  \frac{1}{2}(9.8)t^2\\\\94 = 24t + 4.9t^2\\\\4.9t^2 +24t -94 = 0\\\\Use \ formula \ method \ to \ solve \ for \ "t"\\\\a = 4.9 , b = 24, c = -94\\\\t = \frac{-b \ +/- \ \sqrt{b^2 -4ac} }{2a} \\\\t =  \frac{-24 \ +/- \ \sqrt{(24)^2 -4(-94 \times4.9)} }{2(4.9)} \\\\t = \frac{-24 \ +/- \ \sqrt{2418.4} }{9.8}\\\\t = \frac{-24 \ +/- \ 49.177 }{9.8}\\\\t = \frac{-24 \ +\  49.177 }{9.8} \ \ or \ \ t = \frac{-24 \ -\  49.177 }{9.8} \\\\

t = 2.57 \ s \ \ or \ \ t = -7.47 \ s

t = 2.57 s

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