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Alinara [238K]
3 years ago
8

Hi, I need help with this! I'll give five stars and thanks to all the helpful answers! I need five examples of events causing we

athering and erosion. When I looked up the question, I didn't find any events, only examples! Thank you! :)
Physics
1 answer:
Alex17521 [72]3 years ago
4 0
Example of weathering and erosion:

- The ocean beating up against the cliff of a wall and slowly wearing away rock

- A river flowing through river banks and the bank slowly stretching apart further and further as time goes on

- Water freezes in a crack on a rock. As the water freezes, the crack expands on the rock.

- A plant is planted in the same spot every year and slowly breaks up the soil.

- Acid rain slowly breaks down the structure of a building.
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The length of vector A is 93.8 meters and the length of Ay is 38.4 meters, then the length of A, must be
vaieri [72.5K]

Answer:

85.556metres

Explanation:

Using pythagorean theorem

C²=A²+B²

we have c as the hypotenuse vector A thus:

93.8²=A²+38.4²

93.8²-38.4²=A²

8794.44-1474.56=A²

7319.88=A²

A=85.556

3 0
3 years ago
Charge is distributed uniformly on the surface of a large flat plate. the electric field 2 cm from the plate is 30 n/c. the elec
AysviL [449]
The electric field produced by a large flat plate with uniform charge density on its surface can be found by using Gauss law, and it is equal to
E= \frac{\sigma}{2\epsilon_0}
where
\sigma is the charge density
\epsilon_0 is the vacuum permittivity

We see that the intensity of the electric field does not depend on the distance from the plate. Therefore, the strenght of the electric field at 4 cm from the plate is equal to the strength of the electric field at 2 cm from the plate:
E=30 N/C
7 0
3 years ago
A 20-kg child running at 1.4 m/s jumps onto a playground merry-go-round that has mass 180 kg and radius 1.6m. She is moving tang
Dominik [7]

Answer:

ωf = 0.16 rad/s

Explanation:

Moment of inertia of the child = mr² = 20(1.6²) = 51.2 kg•m²

Moment of Inertia of the MGR = ½mr² = ½(180)1.6² = 230.4 kg•m²

(ASSUMING it is a uniform disk)

Initial angular momentum of the child = Iω = I(v/r) = 51.2(1.4/1.6) = 44.8 kg•m²/s

Conservation of angular momentum

44.8 = (51.2 + 230.4)ωf

ωf = 0.15909090...

4 0
3 years ago
The pivot point of a ____ is called the fulcrum.
Alexxx [7]
Hello:

The pivot point of a LEVER is called the fulcrum.
8 0
3 years ago
An ocean wave has a wavelength of 15 meters and is moving at 2.5 m/s. what is the frequency
Tasya [4]

Answer:

frequency is .167/s for this wave

8 0
3 years ago
Read 2 more answers
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