Answer:
Step-by-step explanation:
<u>Given:</u>
<u>Solution:</u>
The only perfect square in the format of 44A is 441 and its square root is 21:
<u>So the letters are:</u>
Answer:
I think number 17 is depends on the type of substance
18 is no.
Step-by-step explanation:
Answer:
The kinetic energy will increase.
Step-by-step explanation:
1/2*80*9=360J .After the acceleration, it will increase to 1/2*80*36=1440J