In what way does varying the length of a string of a violin change the vibration and how does this affect the sound that's produced?

Answers

Answer 1

Answer: The wavelength is the so-called "fundamental" wavelength, or the "first mode." Thus, the wavelength of the string's vibration is defined by the supports, and has nothing whatsoever to do with mass or elasticity.

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if a cat is running at a constant speed of 10km/h for 5 s, what is its average speed and what is its instantaneous speed at 4 s?

Answers

Here a cat is running at constant speed which is given as 10 km/h for 5s

So here the average speed is defined as total distance moved in total time interval

so here it is given by

$v_(avg) = (distance)/(time)$

since

here speed of cat is constant so it will remain the same

And hence the average speed and instantaneous speed at any instant for this duration will remain the same

so here answer would be

average speed = 10 km/h

instantaneous speed = 10 km/h

Omg, give me some advice about phizics i have to study it

Answers

I would give some if I at least had phisics...

Try to develop the highest amount of questios you can, and watch videos about it on youtube, this should help

3. A (n) __ stores food or water in a cell

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a vacuole stores water and food in a cell

A vacoule........im pretty sure

A transfer of heat within a liquid or gas that involves warm particles moving in currents isa convection.
b connection.
c correction.
d conduction.

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So the question is what is a transfer of heat within a liquid or gas that involves warm particles moving in currents. So there are three mechanisms of moving heat. Those are convection, conduction and radiation. Radiation is transfering energy via electromagnetic waves. Conduction is transfering heat trough some thermal conductor. Convection is transferring heat within a liquid or gas that involves warm particless moving in currents.

THE ANSWER IS

A; convection.

Is it possible to estimate densities of liquids in a container by holding them in your hand? Explain.

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No, Because if u do that it wouldn't be the right amount of density. So therefore your density will be wrong.

Explain why atoms move at different speeds depending on whether they are in liquid or solids

Answers

Atoms move a lot faster in liquid because the molecules have more room to move freely. On the other hand, in a solid the molecules are very tight together, giving them little room to wiggle around.

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What is the term that we use to describe two species living together?A. CamouflageB. HibernationC. MigrationD. Symbiosis