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3 years ago

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Answer all questions: 1) The electric field of an electromagnetic wave propagating in air is given by E(z,t) = 4cos(6 x 10^8 t -

2z) +3 sin(6 x 10 t -2z) (V/m). Find the associated magnetic field H(z,t)

1 answer:

Andre45 [30]3 years ago

4 0

Answer:

8

Step-by-step explanation:

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Posting a screenshot. please help.

Alinara [238K]

X^2 + 10x + 11 = 0
x^2 + 10x = -11
x^2 + 10x + 25 = -11 + 25
(x + 5)^2 = 14 <===
x + 5 = (+-) sqrt 14
x = -5 (+-) 3.74

x = -5 + 3.74 = -1.26 <== solution
x = -5 - 3.74 = - 8.74 <== solution

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3 years ago

(–23) – 45 – (–98) = ?

lisabon 2012 [21]

(–23) – 45 – (–98) =–23 – 45 +98=-68+98=30

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3 years ago

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What is the similarity ratio of the smaller to larger similar cones?

Flura [38]

V=1024 pi m^3 and v=250 pi m^3
the similarity ratio of the smaller to larger similar cones is
k= V/v=1024 pi m^3/250 pi m^3= 4.096
the great cone is 4.096 times of the small cone (in volume)

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3 years ago

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Which expression is equivalent to (-3)x+ (-3) (-12)?

julia-pushkina [17]

Answer:

A

Step-by-step explanation:

gimme brainliest

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2 years ago

In the figure, AngleRQS Is-congruent-to AngleQLK. 3 lines are shown. Lines S P and K N are parallel. Line R M intersects line S

stepan [7]

Answer:

x=108

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

m∠RQS≅m∠QLK -----> by corresponding angles

m∠KLM+m∠QLK=180° -----> by supplementary angles (consecutive interior angles)

we have that

m∠RQS=x° ----> given problem

so

m∠QLX=x°

m∠KLM=(x-36)° ----> given problem

substitute

$(x-36)\°+x\°=180\°\\2x=180+36\\2x=216\\x=108$

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3 years ago

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