yea because it is way cheaper then the way the usa do it
Answer:
the glass that has the most water produces the lowest pitch and the glass with the smaller amount produces the highest pitch
Explanation:
the glass full of water causes the glass to vibrate slower and the sound u hear is at a lower pitch
<h3>the formula of velocity is distance/time</h3><h3>so ...</h3>
60/3
<h3>when we divide 60 by 3 we get 20</h3>
so the answer is 20 km/h
You asked the question twice I answered it on the last one
Answer:
a
all the molecules or atoms in motion has kinetic energy