<span>1.0x10^3 Joules
The kinetic energy a body has is expressed as the equation
E = 0.5 M V^2
where
E = Energy
M = Mass
V = Velocity
Since the shot was at rest, the initial energy is 0. Let's calculate the energy that the shot has while in motion
E = 0.5 * 7.2 kg * (17 m/s)^2
E = 3.6 kg * 289 m^2/s^2
E = 1040.4 kg*m^2/s^2
E = 1040.4 J
So the work performed on the shot was 1040.4 Joules. Rounding the result to 2 significant figures gives 1.0x10^3 Joules</span>
        
             
        
        
        
Answer:
a)   S = 2.35 10³   J/m²2
,  
b)and the tape recorder must be in the positive Z-axis direction.
the answer is 5
c) the direction of the positive x axis
Explanation:
a) The Poynting vector or intensity of an electromagnetic wave is
           S = 1 /μ₀ E x B
if we use that the fields are in phase
           B = E / c
we substitute
          S = E² /μ₀ c
let's calculate
         s = 941 2 / (4π 10⁻⁷  3 10⁸)
         S = 2.35 10³   J/m²2
  
b) the two fields are perpendicular to each other and in the direction of propagation of the radiation
In this case, the electro field is in the y direction and the wave propagates in the ax direction, so the magnetic cap must be in the y-axis direction, and the tape recorder must be in the positive Z-axis direction.
the answer is 5
C) The poynting electrode has the direction of the electric field, by which or which should be in the direction of the positive x axis
 
        
             
        
        
        
X rays because to see your bones
        
             
        
        
        
Scientific theory because it's a theory it's already an answer but it might change depending on the condition.
        
             
        
        
        
Answer:
Because it has more mass
Explanation:
To understand this, think about the equation of kinetic energy
KE =  m
 m 
Kinetic energy depends on both the velocity (v) as well as the mass (m).
Because a lorry is bigger and heavier than a car, it will have more mass. With more mass, at the same velocity the lorry with have more kinetic energy.