<u>Point of correction</u>
Density of water is 
not 100 as provided, it may be typo
Answer:
Explanation:
Buoyant force of water (Weight difference) is 96-30=66 N
Buoyancy force=
where 
is the density of water, g is acceleration due to gravity whose value is provided as 
and v is the volume of the body
hence substituting 66 for buoyancy force, for density of water and finding the unknown value of volume, v
66=1000*10*v
V = 10 m/s
S=10km = 10000m
t = ?
v = S/t
t = S/v
t = 10000 m / 10 m/s
t ≈ 1000s = 16,67 min
Complete question is;
Three grams of the same substance in different phases are stored in three different containers. Each container is barely large enough to hold the substance. Which statement can be known about the behavior of the atoms in each container?
A) The atoms in the solid would be moving vigorously around the container.
B) The atoms in the liquid would be vibrating in position.
C) The atoms in the solid would be vibrating in position.
D) The atoms in the gas would be moving slowly around the container.
Answer:
Option C - The atoms in the solid would be vibrating in position
Explanation:
Option A is wrong because the molecules in solids are held together by strong inter molecular forces and therefore can't move about freely but instead will vibrate in their position.
Option B is wrong because the atoms in liquid are more free than those in solids. Thus they will not have room to vibrate.
Option C is correct from the explanation from option A.
Option D is wrong because the atom of the gas would be very loose and free and would therefore be moving very fast around the container
Answer:2 amperes
Explanation:
Voltage=120v
Total resistance=15+15+30
Total resistance=60 ohms
Current=voltage ➗ resistance
Current=120 ➗ 60
Current=2 amperes
