Answer:
Ex = - 4 + 14xy
Ey = 7x² - 7z²
Ez = -14yz
Step-by-step explanation:
The relationship between Electric field Er(x, y, z) and Electric potential, V, is a differential relationship:
Er(x, y, z) = -dV/dr(x, y, z)
Where r(x, y, z) = distance in x, y and z components.
The x component of the electric field is:
Ex = -dV/dx
Given that:
V = 4x - 7x²y + 7yz²
Ex = -dV/dx
Ex = -(4 - 14xy)
Ex = -4 + 14xy
The y component of the electric field is:
Ey = -dV/dy
Ey = -(-7x² + 7yz²)
Ey = 7x² - 7z²
The z component of the electric field is:
Ez = -dV/dz
Ez = -(14yz)
Ez = -14yz
3 divided by 8 = 0.375
0.375 x 100 = 37.5%
37.5% is closest to 38%
Answer:
x=17 p=20
Step-by-step explanation:
Answer:
The answer would be, both A. and B.
Answer:7/20 = 0.35 = 35%=500x.35 =175 men
40%=.40x500 =200 women
200+170=370
500-370
125 children
Step-by-step explanation:
