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Soloha48 [4]
3 years ago
11

Is a rock that cools quickly after lava rusted through a volcano what is the best description of its texture

Physics
2 answers:
umka21 [38]3 years ago
7 0
I think glass. Where does rust play a part of lava?

gavmur [86]3 years ago
3 0
The physical description would be soft due to the lava cooling the rock.
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If you can throw a stone straight up to height h, what’s the maximum horizontal distance you could throw it over level ground?
Mariana [72]
To answer this question, first we take note that the maximum height that can be reached by an object thrown straight up at a certain speed is calculated through the equation,
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where v is the velocity, θ is the angle (in this case, 90°) and g is the gravitational constant. Since all are known except for v, we can then solve for v whichi s the initial velocity of the projectile. 

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3 years ago
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2. How did Isabella discover capoeira?
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Answer:

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3 years ago
The de broglie wavelength of an electron with a velocity of 6.00 × 106 m/s is ________ m. The mass of the electron is 9.11 × 10-
WINSTONCH [101]

Answer: 1.212(10)^{-10} m

Explanation:

The de Broglie wavelength \lambda is given by the following formula:

\lambda=\frac{h}{p} (1)

Where:

h=6.626(10)^{-34}\frac{m^{2}kg}{s} is the Planck constant

p is the momentum of the atom, which is given by:

p=m_{e}v (2)

Where:

m_{e}=9.11(10)^{-28}g=9.11(10)^{-31}kg is the mass of the electron

v=6(10)^{6}m/s is the velocity of the electron

This means equation (2) can be written as:

p=(9.11(10)^{-31}kg)(6(10)^{6}m/s) (3)

Substituting (3) in (1):

\lambda=\frac{6.626(10)^{-34}\frac{m^{2}kg}{s}}{(9.11(10)^{-31}kg)(6(10)^{6}m/s)} (4)

Now, we only have to find \lambda:

\lambda=1.2122(10)^{-10} m>>> This is the de Broglie wavelength of the electron

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3 years ago
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a_sh-v [17]

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Stars are independent variables in this case because they do not need constellations to form them.

Constellations are dependent variables in this case because they depend on stars to form them. Constellations are literally a group of stars that make an imaginary picture to us.

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4 years ago
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