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nika2105 [10]
3 years ago
11

PLEASE HELP! Need this ASAP (in 10 minutes)

Physics
2 answers:
xxMikexx [17]3 years ago
6 0
The answer to your question here is A,


(I am dragging a very helpful piece of information from a website call “The Physics Classroom” for an explain took by the way so go check them out if you are still having trouble.)

From the paragraph I read, I could pull out “The data convincingly show that wave frequency does not affect wave speed.”

Thus concluding my answer of why the speed is unchanged.

9966 [12]3 years ago
4 0
I think it’s B


step-by-step explanation:
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Power  = Watt ÷ Time

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4 years ago
The x vector component of a displacement vector has a magnitude of 86.2 m and points along the negative x axis. The y vector com
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Answer:

(a) Magnitude of Vector = 207.73 m

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(a)

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Magnitude\ of\ Vector = \sqrt{d_{x}^{2} + d_{y}^{2}} = \sqrt{(86.2\ m)^{2} + (189\ m)^{2}}\\\\

<u>Magnitude of Vector = 207.73 m</u>

(b)

For the direction of the vector we have the formula:

Direction = tan^{-1}(\frac{y}{x})\\\\Direction = tan^{-1}(\frac{189\ m}{86.2\ m})\\\\

<u>Direction = 65.48°</u>

4 0
3 years ago
A bar of silicon is 4 cm long with a circular cross section. If the resistance of the bar is 270 ω at room temperature, what is
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solution:

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7 0
4 years ago
A penny rides on top of a piston as it undergoes vertical simple harmonic motion with an amplitude of 4.0cm. If the frequency is
nadezda [96]

Answer:

in the downward movement of the movement when the constant is lost

Explanation:

When the coin is on the piston it has a relationship given by

       a = d²x / dt²

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the maximum acceleration is

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When the piston raises the acceleration of gravity and that of the piston go in the same direction, when the piston descends they relate it is contrary to gravity, therefore when the frequency increases, the point where the acceleration of the piston is greater than gravity arrives and the coin loses contact.

The point where you lose contact is

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In short, in the downward movement of the movement when the constant is lost

7 0
3 years ago
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