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Roman55 [17]
3 years ago
7

How are silicate minerals different from non-silicate minerals

Physics
2 answers:
Aleks [24]3 years ago
7 0
The most common mineral group on Earth is the silicate minerals, which all have the elements silica and oxygen as their main ingredients. Most silicate minerals form when molten rock cools, either at or near the Earth's surface or deep underground. There are many different groups of other minerals that are known as non-silicate minerals<span>.</span>
nirvana33 [79]3 years ago
5 0
<span>silicate minerals make up more than 90% of the earth these include feldspars as well as quartz and mica but on the other hand non-silicate minerals make up the last 10% or so these include carbonates like limestone and marble :)</span>
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Acceleration is defined as the rate of change for which of the following
Minchanka [31]
_Award brainliest if helped!
Velocity


Note : Not speed as Acceleration is a vector!
6 0
3 years ago
A playground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about
tankabanditka [31]

Answer:

8050 J

Explanation:

Given:

r = 4.6 m

I = 200 kg m²

F = 26.0 N

t = 15.0 s

First, find the angular acceleration.

∑τ = Iα

Fr = Iα

α = Fr / I

α = (26.0 N) (4.6 m) / (200 kg m²)

α = 0.598 rad/s²

Now you can find the final angular velocity, then use that to find the rotational energy:

ω = αt

ω = (0.598 rad/s²) (15.0 s)

ω = 8.97 rad/s

W = ½ I ω²

W = ½ (200 kg m²) (8.97 rad/s)²

W = 8050 J

Or you can find the angular displacement and find the work done that way:

θ = θ₀ + ω₀ t + ½ αt²

θ = ½ (0.598 rad/s²) (15.0 s)²

θ = 67.3 rad

W = τθ

W = Frθ

W = (26.0 N) (4.6 m) (67.3 rad)

W = 8050 J

6 0
3 years ago
Which of the following is true about the speed of light?
strojnjashka [21]

Answer:

it is a constant value that does not depend on the observer

Explanation:

8 0
3 years ago
Read 2 more answers
Faraday discovered that a current could be induced in a solenoid (a coil of wire) when _____.
igomit [66]
Faraday discovered that a current could be induced in a solenoid (a coil of wire) when "<span>a magnetized rod is being moved through the coil"

Hope this helps!</span>
6 0
4 years ago
Read 2 more answers
(1 point) A street light is at the top of a 25 ft pole. A 4 ft tall girl walks along a straight path away from the pole with a s
Andreas93 [3]

Answer:

\frac{dx}{dt}=7.14m/s

Explanation:

As is showed at the figure annexed, we can solve this problem finding the relation between the girl displacement and the shadow displacement.

Relation the triangles (see figure annexed):

\frac{x}{H}=\frac{x-y}{h}\\x=\frac{H}{H-h}y

We derive in order to find the speed of the shadow, because:

dx/dt: shadow's speed

dy/dt: girl's speed

\frac{dx}{dt} =\frac{25}{25-4}*6=7.14m/s

5 0
4 years ago
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