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4 years ago

Explain what happens to particles in diffusion. What causes diffusion?

2 answers:

8 0

Diffusion:
 in diffusion particles move from area of higher concentration to the area of lower concentration..
causes:
the movement of particles allow them ti disperse,,, when molecules are close to each other they collide with each other and push each other apart so they spread in the whole area... :)

ankoles [38]4 years ago

5 0

Diffusion is the process of water molecules from a high concentration region to low concentration.When particles diffuse ,they will break down to simpler particles.
Causes:
Due to the motion of paticles the particles will collide each other and mix.

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4 years ago

Read 2 more answers

Explain what the ionosphere is and how it interacts with some radio waves.

kumpel [21]

Answer:

Explained

Explanation:

Ionosphere is the outermost layer of the Earth's atmosphere,extending from 60 km to 1,000 km altitude.
It mainly consists of ionized gases by the solar radiation.
It is very important layer to Earth because it influences the radio propagation to distant places on Earth.
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3 years ago

What was his average swimming speed during the second half of the race if he tied the record, which was at an average speed of 2

Nimfa-mama [501]

I believe this question has additional detail which stated that during the 1st half, his speed was 2.01 m/s. From this we can calculate his speed during the second half, v2, using the formula:

v_ave = (v1 + v2) / 2

2.05 m/s = (2.01 m/s + v2) / 2

v2 = 2.09 m/s

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3 years ago

Witch of the following is not an appropriate unit for power

erica [24]

There are no appropriate units for power on the list you provided

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3 years ago

Part e a small toy cart equipped with a spring bumper rolls toward a wall with a speed of v. the cart rebounds from the wall, wi

jeka94

Answer:

Δp = -2 p₀

Explanation:

The momentum is defined by

p = m v

In this case we write the initial and final momentum, we take as positive the direction towards the wall.

p₀ = m v

p_f = m (-v)

the negative sign is because the car is bouncing off the wall

the change of the moment is

Δp = p_f - p₀

Δp = - m v - m v

Δp = -2 mv

Δp = -2 p₀

we see that the change of moment is twice the moment, in the attachment we can see the vectors of these changes and the sign indicates the direction of the change at the moment

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3 years ago