If the sack weighs 210 newtons, then an upward force of 210 newtons
exactly cancels the downward force of gravity, and makes the net vertical
force on the bag zero.
ANY upward force that's greater than 210 newtons makes the net force
act upward on the bag, and causes it to accelerate upward.
Answer:
the answer would be A and B
Answer:
The mass of the water on earth is 
Explanation:
Given that,
Average depth h= 0.95 mi



Radius of earth 
Density = 1000 kg/m³
We need to calculate the area of surface
Using formula of area

Put the value into the formula


We need to calculate the volume of earth

Put the value into the formula


Now, 70 % volume of the total volume


We need to calculate the mass of the water on earth
Using formula of density


Put the value into the formula


Hence, The mass of the water on earth is 