I would go with radioactivity is controlled radiation from a nucleus
Answer:

Explanation:
Given
Distance = 1 mile
Time = 8.92 minutes
Required
Calculate Speed in km/hr
Speed is calculated as thus;

Substitute 1 mile for distance and 8.92 minutes for time

Convert Miles to Kilometres
If
;
Then

--- (1)
Convert minutes to hour

Multiply both sides by 8.92

---- (2)
By substituting (1) and (2) in
, we have


-- Approximated
Hope this helps!
https://youtu.be/MT5tKijKZwQ
Answer:
The answer to your question is P1 = 1.4 atm
Explanation:
Data
Volume 1 = V1 = 735 ml
Pressure 1 = P1 = ?
Volume 2 = V2 = 1286 ml
Pressure 2 = P2 = 0.8 atm
Process
To solve this problem use Boyle's law.
P1V1 = P2V2
-Solve for P1
P1 = P2V2 / V1
-Substitution
P1 = (0.8 x 1286) / 735
-Simplification
P1 = 1028.8 / 735
-Result
P1 = 1.4 atm
I would say D. Because if you displace too much water it would would either go to fast or not move at all... that's just my thought