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3 years ago

Explain the changes in molecular motion of particles as they change from solid to liquid to gas.

Physics

1 answer:

andrey2020 [161]3 years ago

8 0

Answer:

A rise in temperature increases the kinetic energy and speed of particles; it does not weaken the forces between them. The particles in solids vibrate about fixed positions; even at very low temperatures. Individual particles in liquids and gases have no fixed positions and move chaotically.

Explanation:

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tester [92]

Answer:

1.1mg/min

Explanation:

We are given that

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3 years ago

A measure of how easily current will pass through a material ?

Jlenok [28]

Answer:

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3 years ago

Poorly treated municipal wastewater is discharged to a stream. The river flow rate upstream of the discharge point is Qu/s = 8.7

Musya8 [376]

Answer

given,

Q u = 8.7 m³/s

Q d= 0.9 m³/s

BOD concentration = 50 mg/L

a) BOD concentration at the down stream

$C_{down}=\dfrac{0.9\times 50}{8.7+0.9}$

$C_{down}=\dfrac{0.9\times 50}{9.6}$

= 4.69 mg/L

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velocity steam = $\dfrac{8.7+0.9}{10}$

= 0.96 m/s

time taken to move 50 km down stream = $\dfrac{50 \times 1000}{0.96}$

= 52083.3 s

= $\dfrac{52083.3}{3600\times 24}$

= 0.6 days

now,

$C_t=C_0e^{-kt}$

$C_t=4.6875\ e^{-0.2\times 0.6}$

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4 years ago

Which state Which states of matter have a set volume? Explain why this is, based on the animations you observed for the differen

Lyrx [107]

Answer: Solid

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Among the 3 state, solid has a fixed volume while liquid takes the volume of its container. When gas is compressed, it takes the volume of its container likewise.

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3 years ago

When growing tomatoes with little sunlight, will using a mirror to reflect the sunlight give the same result as direct sunlight?

telo118 [61]

Answer:

No, it is not d true light

Explanation:

fruits generally plants need a direct sunlight

4 0

4 years ago