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3 years ago

6

When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room. Which sentence explains t

his?

1 answer:

Katyanochek1 [597]3 years ago

5 0

When a perfume bottle is opened, some liquid changes to gas and the fragrance spreads around the room because gases do not have a definite volume.

Hope this helps!

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Answer:

150

Explanation:

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4 years ago

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The Kidneys And Lungs.

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3 years ago

At a certain point in space, there is a potential of 800 V relative to zero. What is the potential energy of the system when a +

sammy [17]

To solve this problem we will apply the concepts related to electric potential and electric potential energy. By definition we know that the electric potential is determined under the function:

$V = \frac{k_e q}{r}$

$k_e$ = Coulomb's constant

q = Charge

r = Radius

At the same time

$U = \frac{k_e q_1q_2}{r}$

The values of variables are the same, then if we replace in a single equation we have this expression,

$U = Vq$

If we replace the values, we have finally that the charge is,

$V = 800V$

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$U = (800V)(1*10^{-6}C)$

$U = 8*10^{-4}J$

Therefore the potential energy of the system is $8*10^{-4} J$

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3 years ago

At a horse race, all horses started from rest. As soon as the gates were open the horses started to trot. After 300s, Blacky was

Bas_tet [7]

Acceleration<span> is a vector quantity that is defined as the rate at which an object changes its velocity. An object is </span>accelerating<span> if it is changing its velocity. It can be calculated by the expression:

a = v2 - v1 / t

From the given in the problem, we can solve for v2, the final velocity:

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4 years ago

PERIOD OF THE LEG The period of the leg can be approximated by treating the leg as a physical pendulum, with a period of Equatio

Lesechka [4]

Answer:

Explanation:

We can see from the question that

$T 2\pi\sqrt{\frac{I}{mgh} }$

and $I = \frac{ml^2}{3}$

$m = 16$ % of $67kg$

=> $m =10kg$

from the question $l =48$ % of $1.83m$

Substituting this into the equation

$I = \frac{10.72 * (0.8784)^2}{3}$

=> $I = 2.7571 \ kg m^2$

$h = 0.5 * L$

$h = 0.5 * 0.8784$

$h = 0.4392m$

From the equation above

$T = 2 \pi \sqrt{\frac{2.7571}{10 .72 * 9.81 * 0.4392} }$

$T = 1,534\ sec$

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3 years ago