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Nata [24]
3 years ago
13

Which statement about electromagnetic waves is true?

Physics
2 answers:
Alborosie3 years ago
8 0

Answer:

B

Good luck! Have a great day!

nevsk [136]3 years ago
3 0
B explanation: I took the quiz hopes this help
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Imagine two fixed charges on the x axis. Charge one is +q and is located to the left of charge two which is equal to -4q. Where
givi [52]

Answer: B)To the left of the charges.

Explanation: between the charges the electric field will not cancel but will be added since electric field lines from both charges point in the same direction. To the right of the charge the -4q will take over as it’s strength overcomes the strength of the +q charge. At this point the magnitude of +q will never reach a magnitude strong enough to cancel the -4q. To the left, it is further away from -4q and is closer to +q and electric field lines point in different direction

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If you wanted to soundproof a room what insulator would you use
olasank [31]

Answer:

foam but thats what i heard from other people

Explanation:

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3 years ago
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14. The design for a rotating spacecraft below consists of two rings. The outer ring with a radius of 30 m holds the living quar
Zolol [24]

Answer:

T= 11.0003s

Explanation:

From the question we are told that

The outer ring with a radius of 30 m

inner Gravity Approximately 9.80 m/s'

Outer Gravity Approximately 5.35 m/s.

Generally  the equation for centripetal force is given mathematically as

Centripetal acceleration enables Rotation therefore?

     \omega ^2 r =Angular\ acc

Considering the outer ring,

 \omega ^2 r = 9.8

  \omega ^2= \frac{9.8}{30}

 \omega = \sqrt{\frac{9.8}{30}}

 \omega= 0.571 rad/s

Therefore solving for  Period T

Generally the equation for solving Period T is mathematically given as

 T= \frac{2\pi}{\omega}

 T= \frac{2\pi}{0.571 rad/s}

 T= 11.0003s

5 0
3 years ago
What is an example of convection currents? a. marshmallows toasting over a campfire b. a pot being heated by an electric burner,
SCORPION-xisa [38]

Answer:

B

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because, convection is the transfer of heat between fluid substances/materials

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