The impulse (the variation of momentum of the ball) is related to the force applied by
where
is the variation of momentum, F is the intensity of the force and
is the time of application of the force.
Using F=1000 N and
, we can find the variation of momentum:
This
can be rewritten as
where
and
are the final and initial momentum. But the ball is initially at rest, so the initial momentum is zero, and
from which we find the final velocity of the ball:
Answer:a lid
Explanation bob pulled the lid off the jar of pickles
The answer is A,B,C that apply. I believe this is the answer i hope this helps have a good day.
Solution :
Let us consider the Gaussian surface that is in the form of a cylinder having a radius of r and a length of A which is 
.
The charged enclosed by the cylinder is given by,
(here, V = 
is the volume of the cylinder)
If 
is positive, then the electric field lines moves in the radial outward direction and is normal to Gaussian surface which is distributed uniformly.
Therefore, total flux through Gaussian cylinder is :
Now using Gauss' law, we get
or 
Therefore, the electric field is
Hence, option (d) is correct.
We know that force equals mass times acceleration, so substitute in the known values and solve.
