2 years ago

Different kinds of electromagnetic waves are identified by their -?-

Physics

1 answer:

const2013 [10]2 years ago

4 0

Answer:

frequency or wavelength

Explanation:

this is why the electromagnetic spectrum has a decreasing wavelength and increasing frequency

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The observable universe is still huge, but it has limits. because it's most likely like an plane all round.

Explanation:

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3 years ago

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I am Lyosha [343]

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B - Velocity

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Velocity definition: “The speed of something in a given direction.”

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2 years ago

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mash [69]

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3 years ago

You drive a car 640 m to the east, then 340 m to the north what is the magnitude of your displacement

mixer [17]

Magnitude of displacement = $\sqrt{640^2 + 340^2}$

Adding the squares gives displacement = $\sqrt{525,200}$

Displacement = $\sqrt{525,200}$ ≈ 724.7m

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3 years ago

lonnie pitches a baseball of mass 0.02kg. The ball arrives at home plate with a speed of 40 m/s and is batted straight back to L

vodomira [7]

Answer:

I=2 kg.m/s

Explanation:

The impulse is defined as the change of momentum:

$I=p_f-p_o\\I=m*v_f-m*v_o\\I=0.02kg*[(-60m/s)-40m/s]\\I=2kg.m/s$

We took the final velocity as negative since it is going on the opposite direction of the intial motion of the ball.

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3 years ago