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3 years ago

Why can a liquid change to take the shape of its container but NOT expand to fill the container itself?

Physics

2 answers:

Rom4ik [11]3 years ago

6 0

Because it cant expand it can only change its shape

Simora [160]3 years ago

3 0

Answer:

C) because the particles of a liquid are held together loosely enough to flow, but not so loose that they expand

Explanation:

took the test

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. A dog walks 14 m to the east and then 20 m back to the west. What is the distance? What is the displacement?

Crank

Answer:

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14-20=-6...displacement

14+20=34...distance

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3 years ago

What gives an atom its charge?

s344n2d4d5 [400]

An atom with a neutral charge is one where the number of electrons is equal to the atomic number

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Answer:

According to Oxford Dictionaries "Precision" means "the quality, condition, or fact of being exact and accurate."

Explanation:

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2 years ago

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IceJOKER [234]

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3 years ago

Accelerating charges radiate electromagnetic waves. Calculate the wavelength of radiation produced by a proton of mass mp moving

Iteru [2.4K]

Explanation:

Let $m_p$ is the mass of proton. It is moving in a circular path perpendicular to a magnetic field of magnitude B.

The magnetic force is balanced by the centripetal force acting on the proton as :

$\dfrac{mv^2}{r}=qvB$

r is the radius of path,

$r=\dfrac{mv}{qB}$

Time period is given by :

$T=\dfrac{2\pi r}{v}$

$T=\dfrac{2\pi m_p}{qB}$

Frequency of proton is given by :

$f=\dfrac{1}{T}=\dfrac{qB}{2\pi m_p}$

The wavelength of radiation is given by :

$\lambda=\dfrac{c}{f}$

$\lambda=\dfrac{2\pi m_pc}{qB}$

So, the wavelength of radiation produced by a proton is $\dfrac{2\pi m_pc}{qB}$ . Hence, this is the required solution.

3 0

3 years ago