Answer:
Explanation:
Electric field E = k Q / R²
k = 9 x 10⁹ , Q is charge and R is distance of point from the charge where field is to be found .
Electric field due to q₁ at distance x where total field is zero
E₁ = k x .48 x 10⁻⁹ / x²
Electric field due to other charge at that point
E₂ = k x 7.6 x 10⁻⁹ /( 1.16-x )²
For net field to be zero , E₁ and E₂ should be equal and opposite
k x .48 x 10⁻⁹ / x² = k x 7.6 x 10⁻⁹ /( 1.16-x )²
(1.16 - x )² / x² = 7.6 / .48 = 15.8333
1.16 - x / x = ±3.979
1.16 - x = 3.979 x
1.16 = 4.979 x
x = .233 m
distance from other charge
= 1.16 - .233
= .927 m .
Forces that build up , or create , landmasses
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
