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Stells [14]
4 years ago
13

Which of the following is a mixture?

Physics
1 answer:
rewona [7]4 years ago
5 0
Sand is the mixture because it is a combination of different forms of gravel, stones, and ocean floor sediments.
All other options are chemically bonded, making them solutions or compounds rather than mixtures.
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At a constant temperature, the volume of a gas doubles when the pressure is reduced to half of its original value. This is a sta
djyliett [7]

Answer: Boyle’s law

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

As pressure is decreased to half, the volume is increased to doubled.

Charles' Law: This law states that volume is directly proportional to the temperature of the gas at constant pressure and number of moles.

V\propto T     (At constant pressure and number of moles)

Gay-Lussac's Law: This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.

P\propto T     (At constant volume and number of moles)

Combined gas Law: combining the three laws:

PV\propto T  

6 0
4 years ago
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If you walk along a log floating on a lake why does the log move in the opposite direction?
aivan3 [116]

<em>HERE'S</em><em> </em><em>YOUR</em><em> </em><em>ANSWER</em><em>: </em>

•Since the log is stationary and you are moving beside the log, it seems to move in the opposite direction from your point of view, because from your perspective u are stationary and the log is moving. If you were to stop moving the log would also stop moving.

<em>HOPE</em><em> </em><em>IT</em><em> </em><em>HELPS</em><em>.</em><em>.</em><em>.</em>

5 0
4 years ago
An angler experiences a glare of light coming from the water's surface. Which type of glasses should she wear to minimize the gl
Vaselesa [24]
The glasses that she should wear are the glasses that block horizontally polarized light coming from glares, like polaroid sunglasses, because these type of glasses block out the light being reflected from the water's surface by the vertically oriented polarizers in the lenses. 
6 0
3 years ago
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If you place small pieces of tissue paper near the balloon in Picture 2, they would probably stick to the
pishuonlain [190]

Answer:

The balloon has more negative charges than positive charges. The tissue paper has a neutral charge.The static electricity pulls on the tissue paper lifting it up.

4 0
3 years ago
The speed of sound I gases depends on <br> a humidity <br> b air<br> c temperature <br> d visibility
Mazyrski [523]

The speed of sound in gases is represented mathematically as:

v(sound)  = √γRT/M

where γ = adiabatic constant which is the ratio of the heat capacities at constant pressure and constant volume; Cp/Cv

R = gas constant

T = temperature

M = molar mass of the gas

Hence, the speed of sound in gas is directly proportional to the square root of temperature.

Ans: c) temperature

4 0
3 years ago
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