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Evgesh-ka [11]
3 years ago
10

Solve three questions.

Physics
1 answer:
Bingel [31]3 years ago
4 0

(a) If the sediment shown in the photo undergoes metamorphism it will likely become Sandstone.

(b) The image is primarily a texture of Gneissic banding.

(c) The weathering rind in the granite is produced primarily by oxidation.

<h3>Metamorphosis of sedimentary rocks</h3>

If the sediment shown in the photo undergoes metamorphism it will likely become Sandstone.

Sandstone is a clastic sedimentary rock composed mainly of sand-sized silicate grains.

<h3>What is Genissic banding?</h3>

The minerals in gneiss are arranged into layers that appear as bands in cross section.

Thus, the image is primarily a texture of Gneissic banding.

<h3>What is oxidation weathering?</h3>

Oxidation is a chemical weathering that occurs when oxygen combines with another substance and creates compounds called oxides.

Thus, the weathering rind in the granite is produced primarily by oxidation.

Learn more about weathering here: brainly.com/question/829782

#SPJ1

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A car is going 43m/s and travels 14 m, how<br> long did it take?
Burka [1]

Answer:

Time = 0.3256 sec

Explanation:

Velocity = displacement / time

43=14/t

So the time =14/43

t=0.3256 sec

6 0
3 years ago
Explain why bicycles have gears in terms of the force-velocity property of muscle.
denpristay [2]

2 wheels force is put on the back gear to push a larger gear on front . when pedalling on flat force should be applied on middle to smaller size. However when bike reached a terminal force it rider will move to smaller gear and go faster. If bike is going down hill the force of gravity will mean rider can manage the smallest gear as in fastest speed as Force = Mass × Velocity and the impact of gravity means less force is required as the weight of the bike and rider However the opposite it through for uphill as the rider is going against gravity ..weight and gravity will mean the rider will need to go to the larger gear the slower speed.

There are other factors as in wind and slip stream and type of pedals to maximise the force.

6 0
4 years ago
An object is dropped at a height of 12 m from the ground. How fast is it moving just before it hits the ground?
sp2606 [1]

The final speed of the object is 15.3 m/s

Explanation:

The object in the problem is moving by uniformly accelerated motion (it is in free fall), so we can use the following suvat equation:

v^2-u^2=2as

where

v is the final velocity

u is the initial velocity

a=g=9.8 m/s^2 is the acceleration of gravity (taking downward as positive direction)

s is the vertical displacement

For the object in this problem:

u = 0 (it starts from rest)

s = 12 m is the displacement of the object

Solving for v,

v=\sqrt{u^2+2as}=\sqrt{0+2(9.8)(12)}=15.3 m/s

Learn more about free fall motion here:

brainly.com/question/1748290

brainly.com/question/11042118

brainly.com/question/2455974

brainly.com/question/2607086

#LearnwithBrainly

6 0
3 years ago
While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction b
tresset_1 [31]

Answer:

64.1°

Explanation:

Coefficient of friction = Horizontally resolved pushing force divided by Moving force

Coefficient of friction is 0.437

Resolving pushing force to horizontal = Moving force * Cos ∅

Therefore, 0.437 = Cos ∅

and ∅ = Arch Cos 0.437 = 64.1°

6 0
3 years ago
How does a fuse work?
Vilka [71]

Answer:

A. a material burns out when current is excessive

5 0
3 years ago
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