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ki77a [65]
4 years ago
11

What amount of temperature do you need to make a metamorphic rock?

Physics
1 answer:
sveta [45]4 years ago
6 0
Anywhere from 400 to 600 degrees Celsius  
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When the amplitudes of waves are equal, which frequency waves have the most energy?​
Molodets [167]

Answer:

higher frequency waves will have more energy

Explanation:

5 0
2 years ago
A uniform disk of 10 kg and radius 4.0 m can rotate in a horizontal plane about a vertical axis through its center. The disk is
o-na [289]

Answer:

18.75 rad/s

Explanation:

Moment of inertia of the disk;

I_d = ½ × m_disk × r²

I_d = ½ × 10 × 4²

I_d = 80 kg.m²

I_package = m_pack × r²

Now,it's at 2m from the centre, thus;

I_package = 5 × 2²

I_package = 20 Kg.m²

From conservation of momentum;

(I_disk + I_package)ω1 = I_disk × ω2

Where ω1 = 15 rad/s and ω2 is the unknown angular velocity of the disk/package system.

Thus;

Plugging in the relevant values, we obtain;

(80 + 20)15 = 80 × ω2

1500 = 80ω2

ω2 = 1500/80

ω2 = 18.75 rad/s

5 0
3 years ago
Rock can melt at a depth of about
Fed [463]

Answer:

The answer is D, around 2000 km

Explanation:

3 0
3 years ago
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Anyones good in gr5 science pls help me
oee [108]

Answer:

1. A

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6 0
3 years ago
Which of the following represents the wavelength of a wave?
dlinn [17]

Answer: D. the distance between the highest points of consecutive waves

Explanation:

The wavelength of a wave is defined as the <em>distance traveled by a periodic perturbation that propagates through a medium in a given time interval</em>. It is usually represented by \lambda and can be calculated if the frequency of the wave is known, since there is an inverse relationship between both.

In the specific case of a periodic sine wave (which is the way in which a wave is usually represented graphically) the wavelength can be determined as the distance between two consecutive maxima of the disturbance.

Therefore, the correct option is D.

8 0
3 years ago
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