Answer:
Please see below as the answers are self-explanatory
Explanation:
a)
- A electric field line is an imaginary line, which has the property that the electric field vector is tangent to it at any point. It starts from positive charges (since the electric field by convention it has the direction of the trajectory that would take a positive test charge, so it always goes away from positive charges) and ends in negative charges.
b)
- Since the potential difference between two points represents the work per unit charge needed for a charge to move between these points, a equipotential surface is the one over which it is not needed to do work to move a charge from any point on the surface to any other point, which means that all points are at the same potential.
c)
- Equipotential surfaces are not necessarily physical surfaces, they can be defined in vaccum for instance.
- As an example, any spherical surface concentric with a point charge, is an equipotential surface, and it can be a real surface or a fictitious one.
According to newton's first law, massive objects have larger inertia than
small objects, which means it takes more force to move bigger things
than smaller
ones.
Answer:
Answers of the Both parts are in the following attachment
Explanation:
The point with the greatest potential energy is B.
The potential energy of an object is depends on the relative distance between the object and the ground and its mass. The higher the object is from the ground the greater the potential energy posses.
Potential energy (P.E) = mgh
Where m is the mass, g is the gravity and h is the height from the ground to where the object is.
Since the mass and gravity is constant in this case, only the height will determine the point with the greatest P.E and that point is B.
Answers:
a) 0.144 Hz
b) 0.904 rad/s
c) 11.818 m
d)
Explanation:
The rest of the question is written below:
a) Calculate the frequency of oscillation (in Hertz) of the chandelier
b) Calculate the angular frequency 
of the chandelier in radians/ second
c) Determine the length 
in meters of the chandelier
d) That evening, while hanging out in JJ. Thompson's House O' Blues, you notice that (coincidentally) there is a chandelier identical in every way to the one at the Michelson exhibit except this one swings back and forth 0.01 seconds slower, so the period is 
. Determine the acceleration due to gravity in 
at the club.
a) The frequency 
has an inverse relation with the period 
:
(1)
Where 
(2)
b) The angular frequency is given by:
(3)
(4)
(5)
c) Another expression for the period is:
(6)
Where:
is the length of the pendulum
is the mean acceleration due gravity
Isolating :
(7)
(8)
(9)
d) In this case the period of the pendulum is 
. So, we will use equation (7) with this period and find 
:
(10)
(11)
(12) This is the acceleration due gravity at the place, which is near the mean value of 
