<span>1.6625 x 10−21</span>
<span>mass of one helium atom x 250 </span>
Express 250 as 2.50.
(6.65 x 10−24)(2.50 x 102)
16.625 x 10<span>−22</span>

AS we know the short pin shows minute and the big one shows hours so the time is .
1. In first clock
2:48
2. In second clock
9:46
3. In third clock
12:2
HOPE IT HELPS YOU.
Answer:
A=616cm²
Step-by-step explanation:
The question says to use

for pi, now that we know that we proceed like normal and do the formula like this.
