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4 years ago

Which pair of features best characterizes a sound wave?

Physics

2 answers:

Dafna11 [192]4 years ago

7 0

The only thing you need to find out w<span>hich pair of features best characterizes a sound wave is to see the graph or it's image on monitore. The correct answer is C. Here is a graph that represents this fact, do not pay attention in any index, just look how it works :)</span>

Neporo4naja [7]4 years ago

5 0

The only thing you need to find out which pair of features best characterizes a sound wave is to see the graph or it's image on monitore. The correct answer is C.

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A nurse pushes a cart by exerting a force on the handle at a downward angle of 36 degrees below the horizontal. the loaded cart

Troyanec [42]

Since it was stated that it must move at constant velocity, so the only force it must overpower is the frictional force.

So the equation is:

F cos θ = Ff

F cos 36 = 65 N

F = 80.34 N

<span>So the nurse must exert 80.34 N of force</span>

4 0

3 years ago

If we find v=Al, where l is a length and v is a speed, what are the SI units for A?

swat32

Answer:

I think the SI unit of A is m^2/s

3 0

3 years ago

Read 2 more answers

As a laudably skeptical physics student, you want to test Coulomb's law. For this purpose, you set up a measurement in which a p

monitta

Answer:

force F = 1.66 × $10^{-13}$ N

Explanation:

given data

proton and an electron = 865 nm

solution

we get here force that is express as

force F = k q1 q2 ÷ r² ......................1

put here value and we get

force F = 9 × $10^{9}$ × $\frac{1.6\times (10^{-19})^{2}}{865 \times (10^{-9})^{2}}$

force F = 1.66 × $10^{-13}$ N

4 0

3 years ago

In the given figure, weight of stone inside water

AnnZ [28]

The actual weight of the stone is 11 N. It is based on the Archimedes principles.

<h3>What is Archimedes principle?</h3>

Archimedes principle states that the up thrust by water on an object is equal to the weight of water displaced.
Upthrust by water on an object= actual weight of object - weight inside water

<h3>What is the actual weight of the object, if its weight inside water is 9N and weight of water displaced is 2N?</h3>

Actual weight= weight inside water+ weight of water displaced

= 9N + 2N = 11N

Thus, we can conclude that the actual weight of the object is 11N.

Learn more about the Archimedes principle here:

brainly.com/question/775316

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6 0

2 years ago

Sources of vitamin C include all but

Anna11 [10]

I believe its coenzymes.

6 0

3 years ago