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3 years ago

10

A kind of foliated metamorphic rock a. coal b. limestone c. marble d. slate

2 answers:

KatRina [158]3 years ago

5 0

The answer is D.slate

djyliett [7]3 years ago

4 0

Limestone is a kind of Foliated Metamorphic rock.

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A 1.89 kg object on a frictionless horizontal track is attached to the end of a horizontal spring whose force constant is 4.89 N

mixas84 [53]

To solve this problem, apply the concepts related to the simple harmonic movement. We will start by finding the angular velocity, essential to find the position of displacement of the spring with the data provided. With displacement we will apply Hooke's law.

A ) Position of the object is

$x = Acos(\omega t)$

The angular frequency of the object is

$\omega = \sqrt{\frac{k}{m}}$

$\omega = \sqrt{\frac{4.89}{1.89}}$

$\omega =1.60851 rad/s$

Replacing at the first equation we have that

$x = (4.89)cos((1.60851)(3.8))$

$x = 4.8188m$

Now the force is

$F = -kx$

$F = - (4.89)(4.8188)$

$F = -23.5639N$

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3 years ago

A car travelled a distance of 348 km in 6.0 hours. What was it’s speed in (a) km/h and (b) m/sec?

zavuch27 [327]

Answer:

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3 years ago

What do low energy waves have

Elena-2011 [213]

The Answer: Photons

There is photons in low energy waves

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3 years ago

The moment of inertia for a 5500 kg solid disc is 12100 kg-m^2. Find the radius of the disc? (a) 2.111 m (b) 2.579 m (c) 1.679

Soloha48 [4]

Answer:

The radius of the disc is 2.098 m.

(e) is correct option.

Explanation:

Given that,

Moment of inertia I = 12100 kg-m²

Mass of disc m = 5500 kg

Moment of inertia :

The moment of inertia is equal to the product of the mass and square of the radius.

The moment of inertia of the disc is given by

$I=\dfrac{mr^2}{2}$

Where, m = mass of disc

r = radius of the disc

Put the value into the formula

$12100=\dfrac{5500\times r^2}{2}$

$r=\sqrt{\dfrac{12100\times2}{5500}}$

$r= 2.098\ m$

Hence, The radius of the disc is 2.098 m.

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2 years ago

I will fan and give 2 medals!!!!!!

Maksim231197 [3]

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<span>V. </span>Caused by diffraction

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<span>I. </span>loop shape

<span>II. </span>large bright gaseous

<span>III. </span>luminous hydrogen gas

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<span>V. </span>anchored to surface (sun’s surface)

<span> Solar Flare </span>

<span>I. </span>Intense High-energy

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I did this in class I got 100%

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2 years ago