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Alborosie
4 years ago
9

if a volcano contained magma with small proportions of water and silica would you predict a nonexplosive eruption or an explosiv

e one? why?
Physics
1 answer:
Sergio039 [100]4 years ago
4 0
Non explosive because the pressure buildup isn’t big
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At sunrise two old women started to walk towards each other. one started from point a and went towards point b while the other s
konstantin123 [22]

Let the distance between points a and b = d

For the women starting from a her velocity be V_1 and for the women starting from b her velocity be V_2

Let the rising time of sun = x AM

We have  V_1 = \frac{d}{12+4-x}

and we also have  V_2 = \frac{d}{12+9-x}

At they meet means, they both travel a combined distance of d

So we have   V_1*(12-x)+V_2*(12-x)=d

Substituting velocity values we will get

  \frac{d}{12+4-x}*(12-x)+\frac{d}{12+9-x}*(12-x)=d\\ \\ \frac{12-x}{12+4-x}+\frac{12-x}{12+9-x}=1\\ \\ \frac{12-x}{16-x}+\frac{12-x}{21-x}=1\\ \\ 252-21x-12x+x^2+192-12x-16x+x^2=336-16x-21x+x^2\\ \\ x^2-24x+108=0\\ \\ (x-6)(x-18)=0\\ \\

 x= 6 AM or 18 AM, but 18 AM is not possible,

Sun rise time is 6 AM


3 0
3 years ago
The voltage or potential difference provides the ____ required for electrons to travel through a circuit
galben [10]

Answer:

a. push

Explanation:

Voltage is the force or pressure that is responsible for pushing the charge or electrons to flow in a closed-looped electrical circuit. This flow of electrons (charge) is called the electric current. It is also defined as the difference in electric potential per unit charge between two points in an electric field.

5 0
3 years ago
What term best describes the function of
Alja [10]
Lol idkddddddddddddddddd
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4 years ago
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A rock group is playing in a bar. Sound emerging from the door spreads uniformly in all directions. The intensity level of the m
LekaFEV [45]

Answer:

1779299.7m

Explanation:

From formulas in acoustic sound, we know that sound intensity is inversely proportional to the square of the distance away.

Thus;

I2/I1 = r2²/r 1²

So,

∆L = 10 log (I2/I1)

Where ∆L is the intensity of music and r1 and r2 are distances away.

∆L=10log 10(r1²/r2²)

∆L=10log 10(r1/r2)²

∆L= - 20log 10(r1/r2)

r2 = r1•10^(-∆L/20)

​From the question,

∆L = 116 Db

r1 = 2.82m

Thus,

r2 = 2.82 x 10^(116/20)

r2 = 2.82 x 630957.34 = 1779299.7m

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3 years ago
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A plane flies 890 miles at 76° north west what are its north and west components?
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I think it’s 82747 on top of 827483
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