Answer:


Explanation:
a)At the base of the surface the Electric flux is easy to find, because the Electric Field is constant in magnitude and perpendicular to the flat surface:

The Flux is negative because the Electric field goes into the surface
b) The Gaussian surface in form of a hemisphere encloses no net charge. The Gauss law says that the Flux of the electric field is proportional to the net charge enclosed. At this case, the charge is zero, then the total Flux is zero too.

Then:

The Flux is positif because the Electric field goes out of the surface.
The energy stored in the chemical bonds are released and the energy causes surrounding molecules to move faster. Chemical energy released as the coal is burned heats water and turns it to steam
Answer:
0.1040512455 N

0.05925 N

Explanation:
I = Current
B = Magnetic field
Separation between end points is

Effective force is given by

The force is 0.1040512455 N

The angle the force makes is given by

The direction is 

The force is 0.05925 N


The direction is 
Answer:
Wind blowing across the surface eroded the limestone.
Explanation: