Answer:
90 N
Explanation:
The force applied to the ball is given by:

where
is the change in momentum of the ball
is the time taken
The change on momentum of the ball is:

So, the force applied is

Answer:
<h2>a</h2><h2> move with an increasing velocity</h2>
A. The object is made of stone or metal, which always sink.
B. The force of gravity is stronger than the buoyant force.
C. The buoyant force is stronger than the force of gravity.
D. The mass of the item is greater than its gravity
The answer is C
Answer:3.54ohms
Explanation: connection in parallel
1/Rt= 1/R1+1/R2+1/R3
1/Rt= 1/16+1/13+1/7
1/Rt= 91+112+208/1456
1/Rt= 411/1456
411Rt= 1456
Rt= 1456/411
Rt= 3.54ohms