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nika2105 [10]
3 years ago
15

What mineral is most abundant in granite

Physics
1 answer:
77julia77 [94]3 years ago
3 0
I believe it would be orthoclase feldspar, quartz, micas, and amphiboles are the most abundant in granite.<span />
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On a Saturday afternoon, you decide to pay a neighborhood kid to mow your lawn. The kid usesa manual push lawn mower with a mass
Mars2501 [29]

Answer with Explanation:

We are given that

A.Mass,m=12 kg

\theta=53^{\circ}

\mu_k=0.16

Speed,v=1.5m/s

Net force in x direction must be zero

F_{net}=0

Fsin\theta-f=0

Fsin\theta=f

Net force in y direction

N-mg-Fcos\theta=0

N=mg+Fcos\theta

f=\mu_kN=\mu_k(mg+Fcos\theta)

Fsin\theta=\mu_k(mg+Fcos\theta)

Fsin\theta=\mu_kmg+\mu_kFcos\theta

Fsin\theta-\mu_kFcos\theta=\mu_kmg

F(sin\theta-\mu_kcos\theta)=\mu_kmg

F=\frac{\mu_kmg}{sin\theta-\mu_kcos\theta}

Power,P=Fv

P=\frac{\mu_kmg}{sin\theta-\mu_kcos\theta}v

Where g=9.8m/s^2

B.Substitute the values

P=\frac{0.16\times 12\times 9.8}{sin53-0.16cos53}\times 1.5

P=40.17W

6 0
4 years ago
A little girl riding a train rolls a ball toward the back of the train at 1.25 m/s NE. The train is traveling at a velocity of 1
Lelechka [254]

Answer:

Answer: 2.70m/s NE

Explanation:

Just did it.

4 0
4 years ago
Sequence the steps used to extract metal from the earths core
Iteru [2.4K]
Methods of extraction include: extract by electrolysis, extract by reaction with carbon or carbon monoxide, and extracted by various chemical reactions. 《I hope tis help you》
4 0
3 years ago
in a young's double-slit experiment the center of a bright fringe occurs wherever waves from the slits differ in the distance th
blagie [28]

Answer:

Zero

Explanation:

Because using

Deta X= dsinစ x n(lambda)

But we know that for central maxima

n is zero

So after substituting

Deta x = 0

3 0
3 years ago
At any angular speed, a certain uniform solid sphere of diameter D has half as much rotational kinetic energy as a certain unifo
Trava [24]

Answer:

d. 6/5 M.

Explanation:

let the angular velocity =  \omega

the radius of sphere (r) = \frac{D}{2}

moment of inertia of solid sphere I_s = 2/5 M(\frac{D}{2})^2

rotational K.E of solid sphere= \frac{1}{2}* I_s* \omega ^2

=  \frac{1}{2} * 2/5 M(\frac{D}{2})^2 * \omega^2

we represent the mass of hallow sphere= M_{hs}

moment of inertia of solid sphereI_{ss} = 2/3 M_{hs}(\frac{D}{2})^2

rotational K.E of hollow sphere= \frac{1}{2}* I_{ss} * \omega^2

= 1/2 *2/3 M_{hs}(\frac{D}{2})^2* \omega^2

NOW,the kinetic energy of solid sphere= 1/2 kinetic energy of hallow sphere

=1/2 [2/5 M(D/2)^2 ]\omega^2= 1/2 (1/2 (2/3 M_{hs}(D/2)^2 )\omega^2 }

2/5M= 1/3 M_{hs}

M_{hs} = 3(2/5M)

M_{hs} = 6/5 M

7 0
4 years ago
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