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andriy [413]
3 years ago
7

What purpose would the sand serve?

Physics
2 answers:
maxonik [38]3 years ago
7 0

Answer:

Sand is a granular material composed of finely divided rock and mineral particles.

Explanation:

Alexus [3.1K]3 years ago
4 0

Answer:

Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass.

Explanation:

Interesting fact...

Why are there differences between the cooling rates of sand and water? Sand cools off faster than water because sand is a solid. Water heats up slower and cools off slower than sand. Sand heats up faster and cools off faster than water.

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The gauge pressure in the tires of your car is 210 kPa (30.5 psi) when the temperature is 25°C (77 °F). Several days later it is
DaniilM [7]

Under the assumption that the tires do not change in volume, apply Gay-Lussac's law:

P/T = const.

P = pressure, T = temperature, the quotient of P/T must stay constant.

Initial P and T values:

P = 210kPa + 101.325kPa

P = 311.325kPa (add 101.325 to change gauge pressure to absolute pressure)

T = 25°C = 298.15K

Final P and T values:

P = ?, T = 0°C = 273.15K

Set the initial and final P/T values equal to each other and solve for the final P:

311.325/298.15 = P/273.15

P = 285.220kPa

Subtract 101.325kPa to find the final gauge pressure:

285.220kPa - 101.325kPa = 183.895271kPa

The final gauge pressure is 184kPa or 26.7psi.

8 0
4 years ago
The train took 2 h 30 min to travel 3/5 of a journey at an
tresset_1 [31]

Answer:

100 km/h

Explanation:

96km•2.5=240km

240÷3/5=240•5/3=400km

400-240=160km

4.1-2.5=1.6h

160÷1.6=100km/h

6 0
3 years ago
Hey nsnsnsndhdhd dudhshdhdh
PolarNik [594]

Answer:

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Explanation:

5 0
3 years ago
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A(n) is a group of organs that work together to perform a common function.
aalyn [17]

Answer:

It is called an organ System

6 0
3 years ago
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2) what is altitude?
Ronch [10]
2) b) The height above the surface of the earth

3) b) air pressure differences that make air rise or sink

4) a) TC (I'm not sure about this)

5) I don't know this one. Sorry :(

6) a) true

7) a) true

8) b) false (I'm not sure about this)

Sorry I couldn't answer all your questions, but I hope this helps!

5 0
4 years ago
Read 2 more answers
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