Explanation:
Given that,
Magnitude of electric field in +x direction, E = 4.9 V/m
Part A :
The relation between electric and magnetic field is given by :
c is the speed of light
So, the magnetic field of the wave at this same point in space and instant in time is 
.\
Part B :
The direction of electric and magnetic field is same i.e. +x direction.
Hence, this is the required solution.
Answer:
Medium A -> medium C -> medium B
Explanation:
Refraction is defined a s the change in the direction of light rays as it moves from one medium to another. The speed of the light in this media depends on the nature and the refractive indices of the media.
Light has the tendency to travel faster through a medium with low refractive index rather than high refractive index.
Comparing this medias based on the above conclusion
Medium A has index of refraction 1.3; medium
B has index of refraction 1.4 and medium
C has index of refraction 1.35
The light will travel faster in medium A since it have the lowest refractive index followed by medium C then medium B.
Ranking of the media in accordance the time it takes for light to travel through these layers are as shown
Medium A -> medium C -> medium B
Answer:
1- Light , 2-Heat , ( and Nuclear energy)
Explanation:
The weight of the boulder is 3800 N, therefore its mass i s
3800/9.8 = 387.755 kg
If the horizontal acceleration is 12.8 m/s², then the horizontal force applied is
F = (387.755 kg)*(12.8 m/s²) = 4.963 x 10³ n = 4.963 kN
Answer: 4.963 kN
