GEL IT IS COMBINATION OF SOLID AND LIQUID
Answer:The Poynting vector SS represents the flow of energy in an EM field. Specifically, if uu is the energy density of the field, the Poynting vector satisfies the continuity equation for it:
∂u∂t+∇⋅S=0
∂u∂t+∇⋅S=0
in vacuum. (This is Poynting's theorem.)
In your particular problem, EE and BB are perpendicular and their cross product is proportional to the product of their amplitudes. Thus
Sz=cμ0B2.
Sz=cμ0B2.
You then have to use your knowledge of BB to work out SS.
Explanation:
Answer:
A= 150 J
Explanation:
Kinetic energy is the energy of an object in motion.
The formula for kinetic energy is ;
K.E = 1/2 * m *v² where m is mass and v is velocity
Work done is equal to change in kinetic energy
W= Δ K.E
Given that K.E = 150 J
Taking that the ball was stationary before it was thrown, this makes its initial kinetic energy to be 0 J so the work done will be
W= Δ K.E
W= 150 - 0
W= 150 J
This is called an organ. Examples of organs are: your heart, brain, lungs, liver, stomach etc.
