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3 years ago

While a substance is heated it reaches its boiling point. What happens if heating continues while it is boiling?

Physics

1 answer:

frutty [35]3 years ago

3 0

Answer:

<em>liquid turns into vapor when the liquid molecules achieves the energy to break down the form or when gets highly excited. The temp required for this is called latent heat of vaporization. As the liquid molecules attain this energy through heat it suddenly changes form into vapor , and when the heat is continued , molecule after molecule receives this energy and changes to vapor .So if you continue heating the liquid all the liquid will change form to vapor state leaving residue , ie the dissolved particles .</em>

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A hungry 11.5 kg predator fish is coasting from west to east at 75.0 cm/s when it suddenly swallows a 1.25 kg fish swimming from

Oksi-84 [34.3K]

Answer with Explanation:

We are given that

Mass,m=11.5 kg

$v_x=75 cm/s=0.75 m/s,v_y=0$

1 m=100 cm

$m'=1.25 kg$

$v'_x=0,v'_y=3.6 m/s$

According to law of conservation momentum along east west direction

$11.5\times 0.75+1.25(0)=(11.5+1.25)V_x$

$8.625=12.75V_x$

$V_x=\frac{8.625}{12.75}$

$V_x=0.68 m/s$

According to law of conservation of momentum along north south direction

$11.5(0)+1.25(3.6)=(11.5+1.25)V_y$

$4.5=12.75V_y$

$V_y=\frac{4.5}{12.75}=0.35 m/s$

$V=\sqrt{V^2_x+V^2_y}$

$V=\sqrt{(0.68)^2+(0.35)^2}$

$V=0.76 m/s$

Direction, $\theta=tan^{-1}(\frac{V_y}{V_x})$

$\theta=tan^{-1}(\frac{0.35}{0.68})$

$\theta=27.23^{\circ}$

5 0

4 years ago

Planets orbit the Sun because _____.

amm1812

This is a poorly written question.

<span>Out of the choices listed, the first one is the only one that includes
a true statement ... the greater the mass of two objects, the greater
the gravitational attraction is between them.</span>

-- Newton's law of universal gravitation doesn't "suggest" that. It states it ...
boldly and unequivocally.

-- The law doesn't refer to the "greatness" of the mass of the two objects.
It refers to the product of their masses.

-- It's true that the law of universal gravitation can be massaged and
manipulated to reveal the existence of gravitational planetary orbits.
But there's a lot more to it than simply the masses.

For example ... the gravitational force between two objects is inversely
proportional to
(the distance between the objects)² .

It turns out that IF that exponent were not precisely, exactly 2.000000... ,
then gravitational orbits could not exist.

8 0

3 years ago

"You can't see the forest for the trees" might seem an appropriate analogy for astronomers attempting to determine the shape of

denpristay [2]

Some of the techniques used by astronomers to determine the type of galaxy in which we live are:

radio,
optical,
infrared
x-ray astronomy

<h3>What is Astronomy?</h3>

This refers to the study of heavenly bodies and space and other things that space is made up of.

Hence, we can see that the reason why it is so difficult to determine the shape of our galaxy is that astronomers can only infer its presence from the motions of stars in the galaxy, and a precise shape is difficult to be determined.