Explanation:
physical properties are those get can measured and observed without bringing a chemical change chemical properties are those that that get observed and measured when the substance undergoes a chemical change
Answer:
a) 14.2sec
b) 1394m away if horizontal speed never changes
c) 9.8m/s
Explanation:
Smooth, rough
Less, more
Fast, slow
<h2>
Answer:</h2><h2>
It is due to a refractment of light.</h2>
Sound moves faster in warmer air than colder air the way bends away from the warm air and back towards of air.