Physics, 24.07.2019 23:40 nnance4784
*identify if the following are physical (p) or chemical (c) characteristics: 1) __ sodium (na) is a very reactive alkali metal. 2) __ oxygen (o) is a gas. 3) __ wood is flammable. 4) __ a ruby is red. 5) __ copper (cu) conducts electricity. 6) __ water (h2o) freezes at 0 degrees celsius. 7) __ iron (fe) reacts with water to form rust. 8) __ silver (ag) reacts with moisture in the air to form tarnish. 9) __ the chalkboard is magnetic. 10) __ sand and dirt are mixed in a flower pot.
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However, had it been a real sound, the sound's pitch would have been increased by the doppler effect, since the falcon was moving the source of the sound. perpendicular to away from towards at the same speed as
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This is the number of complete movements of a wave per second.
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*identify if the following are physical (p) or chemical (c) characteristics: 1) __ sodium (na) is a...
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