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jeyben [28]
3 years ago
13

Which of the following statements are true concerning electromagnetic radiation fields?Select all that apply.a.) The electric an

d magnetic fields are in phase with each other as they propagate through space.b.)The electric and magnetic fields at any point are parallel to each other.c.)The electric and magnetic fields are phase-shifted 180
Physics
1 answer:
ale4655 [162]3 years ago
6 0

Answer:

a.) The electric and magnetic fields are in phase with each other as they propagate through space.

Explanation:

Electromagnetic wave is a transverse wave in which magnetic field and electric field both induces each other as both changes with time

Here magnetic field induces electric field and similarly magnetic field induces electric field.

As we know that this is a transverse wave so here magnetic field and electric field lies in perpendicular planes. but they both propagate in same direction in such a wave that both fields reaches their maximum position and minimum positions simultaneously

So the correct answer is

a.) The electric and magnetic fields are in phase with each other as they propagate through space.

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A golf ball is hit with a golf club. While the ball flies through the air, which forces act on the ball? Neglect air resistance.
34kurt

To solve this problem it is necessary to apply the equation related to the Gravitational Force, the equation describes that

F = \frac{GMm}{r^2}

Where,

G = Gravitational Universal Constant

M = Mass of Earth (or Bigger star)

m = Mass of Object  (or smallest star)

r = Radius

From the statement we know that once the impact is made, the golf ball is subjected to the forces that are exerted in nature. Since the air resistance, which would represent the drag force, is ignored. Only the forces related to gravity remain.

The gravitational force carries 'pushes' or 'attracts' the body towards the earth, while the speed decreases as it reaches its maximum height.

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Therefore the correct answer is B.

6 0
3 years ago
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mrs_skeptik [129]

its should be 2.0 and 4.5 on it

7 0
3 years ago
Questions
Damm [24]

Answer:

Explanation:

standard decimal form  of 6.36*10^4 is

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7 0
3 years ago
The electric field inside a cell membrane is 8.0 MN/C. Part A What's the force on a singly charged ion in this field?
dlinn [17]

Answer:

Force on the singly charged ion will be 12.6\times 10^{-13}N

Explanation:

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So electric field in N/C will be E=8MN/C=8\times 10^6N/C

It is given that ion so charge on ion will be equal to e=1.6\times 10^{-19}C

We have to find the electric force on the ion

Electric force is equal to F=qE, here q is charge and E is electric field

So force on the charge will be equal to F=8\times 10^6\times 1.6\times 10^{-19}=12.6\times 10^{-13}N

So force on the singly charged ion will be 12.6\times 10^{-13}N

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What is the momentum of a 10.5 kg rolling at 3 m/s
timurjin [86]
Momentum = mass x velocity
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3 years ago
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