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agasfer [191]
2 years ago
9

Would young rocks be found near a volcano?

Physics
2 answers:
MArishka [77]2 years ago
7 0

yes

new forms of extrusive igneous rocks will be created as lava cooling and hardening will create new and young rocks

Vesna [10]2 years ago
4 0

Answer:

Yes, young rocks typically occur around volcanoes since they are closer to the crate, thus the magma is beginning to cool down to form rocks or it has recently cooled down.

Explanation:

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Light rays from stars bend toward smaller angles as they enter Earth's atmosphere. a. Explain why this happens using Snell's law
Grace [21]

Answer:

Following are the answer to this question:

Explanation:

In option (a):

  • The principle of Snells informs us that as light travels from the less dense medium to a denser layer, like water to air or a thinner layer of the air to the thicker ones, it bent to usual — an abstract feature that would be on the surface of all objects. Mostly, on the contrary, glow shifts from a denser with a less dense medium. This angle between both the usual and the light conditions rays is referred to as the refractive angle.  
  • Throughout in scenario, the light from its stars in the upper orbit, the surface area of both the Earth tends to increase because as light flows from the outer atmosphere towards the Earth, it defined above, to a lesser angle.

In option (b):

  • Rays of light, that go directly down wouldn't bend, whilst also sun source which joins the upper orbit was reflected light from either a thicker distance and flex to the usual, following roughly the direction of the curve of the earth.  
  • Throughout the zenith specific position earlier in this thread, astronomical bodies appear throughout the right position while those close to a horizon seem to have been brightest than any of those close to the sky, and please find the attachment of the diagram.

8 0
3 years ago
Suppose a star the size of our Sun, but with mass 9.0 times as great, were rotating at a speed of 1.0 revolution every 7.0 days.
kvasek [131]

Answer:

Its rotation will be 3.89x10⁴ rad/s.

Explanation:

We can find the rotation speed by conservation of the angular momentum:

L_{i} = L_{f}

I_{i}\omega_{i} = I_{f}\omega_{f}   (1)

The initial angular speed is:

\omega_{i} = \frac{1 rev}{7 d} = 0.14 \frac{rev}{d}

The moment of inertia (I) of a sphere is:

I = \frac{2}{5}mr^{2}    (2)

Where m is 9 times the sun's mass and r is the sun's radius

By entering equation (2) into (1) we have:

\frac{2}{5}m_{i}r_{i}^{2}\omega_{i} = \frac{2}{5}m_{f}r_{f}^{2}\omega_{f}

9m_{sun}(696342 km)^{2}0.14\frac{rev}{d} = \frac{3}{4}9m_{sun}(13 km)^{2}\omega_{f}

\omega_{f} = \frac{4}{3}*0.14 \frac{rev}{d}(\frac{696342 km}{13 km})^{2} = 5.36 \cdot 10^{8} \frac{rev}{d}*\frac{1 d}{24 h}*\frac{1 h}{3600 s}*\frac{2\pi rad}{1 rev} = 3.89 \cdot 10^{4} rad/s          

Hence, its rotation will be 3.89x10⁴ rad/s.

I hope it helps you!                                                        

3 0
4 years ago
A ball is thrown directly upward from a height of 3 ft with an initial velocity of 28 ​ft/sec. the function ​s(t)equalsminus16ts
borishaifa [10]

Answer:

t = 0.875 s

s_{max} = 15.25 ft

Explanation:

Position of the ball as a function of time is given as

s(t) = s_o + v_y t + \frac{1}{2}at^2

s(t) = 3 + 28 t - 16 t^2

now we know that when ball will attain maximum height then the differentiation of the position with respect to time will become zero

so we have

\frac{ds}{dt} = 0

0 = 0 + 28 - 32 t

t = 0.875 s

now the maximum height is given as

s_{max} = 3 + 28(0.875) - 16(0.875)^2

s_{max} = 15.25 ft

4 0
4 years ago
Bacteria that can grow in your breathing area is ?
andre [41]
<span>The bacteria is called bacteria pericarditis. 



</span>
6 0
3 years ago
Read 2 more answers
Which of the following is NOT a vector quantity?
lora16 [44]

Answer:

D

Explanation:

Acceleration has both magnitude and direction. because velocity is vector quantity

average velocity is vector

linear momentum = mass× velocity

therefore it's also vector

force = mass× acceleration

acceleration is vector therefore force also vector

potential energy= mgh

energy in any form is scaler quantity therefore potential energy too is a scaler quantity.

5 0
3 years ago
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