4. According to Newton third law what is the action force? The swimmer pushes against the water the water pushes back on the swi
mmer and pushes he forward
A. The swimmer pushing against the water
B. The water pushing on the swimmer
C. The friction as the swimmer dives into the water
D. The mass of the water
5. According to Newton’s third law what is the reaction force? The ball put a force on the wall, and the wall puts a force on the ball bounces off
A. The balls force against the wall
B. The ball inertia
C. The walls force against the ball
D. The walls mass
PLEASE ANSWER ALL
PLEASE ANSWER ALL CORRECT!!!!!
A. The swimmer pushing against the water
B. The water pushing on the swimmer
C. The friction as the swimmer dives into the water
D. The mass of the water
5. According to Newton’s third law what is the reaction force? The ball put a force on the wall, and the wall puts a force on the ball bounces off
A. The balls force against the wall
B. The ball inertia
C. The walls force against the ball
D. The walls mass
PLEASE ANSWER ALL
PLEASE ANSWER ALL CORRECT!!!!!
2 answers:
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Solution :
a). Using Gauss's law :
,
.........(1)
Let in equation (1)
Therefore, .............(2)
....................(3)
Therefore,
.............(4)
Now differentiating the equation (4) w.r.t. 'b', we get
Thus the radius for the inner cylinder conductor is
b). For the energy storage, substitute the radius in (4), we get
This is the amount of energy stored in the conductor.
We will have that the diagram will be the following:
Here "F" is the force the shuttle is using to take off, friction is the friction with the air and "W" is the weight of the shuttle.
