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Nataly_w [17]
3 years ago
7

The ancient city of Pompeii was destroyed when a mixture of hot volcanic gasses, ash, and rock pored down Mount Vesuvius and cov

ered the city. Which two terms describe the substance that was produced by the volcano?
Physics
2 answers:
Alex3 years ago
5 0

Hello there,

The answers are  Pyroclastic flow and Tephra

Hope this helps if so please mark brainiest!

Bad White [126]3 years ago
4 0

the pyroclastic fallout that came from the volcano killed more than 13,000 people

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If I wanted to generate a maximum emf of 20 V, what angular velocity (radians/sec, aka Hz) would be required given a circular co
sergij07 [2.7K]

Answer:

Angular velocity, \omega=35.36\ rad/s

Explanation:

It is given that,

Maximum emf generated in the coil, \epsilon=20\ V

Diameter of the coil, d = 40 cm

Radius of the coil, r = 20 cm = 0.2 m

Number of turns in the coil, N = 500

Magnetic field in the coil, B=9\times 10^{-3}\ T

The angle between the area vector and the magnet field vector varies from 0 to 2 π radians. The formula for the maximum emf generated in the coil is given by :

\epsilon=NBA\omega

\omega=\dfrac{\epsilon}{NBA}

\omega=\dfrac{20\ V}{500\times 9\times 10^{-3}\ T\times \pi (0.2\ m)^2}

\omega=35.36\ rad/s

So, the angular velocity of the circular coil is 35.36 rad/s. Hence, this is the required solution.

6 0
3 years ago
3x/y=6g/b solve for x
lora16 [44]
So looking at the problem, you are going to want to start by finding a common denominator (1) in this case: yb, and combining like terms (2). You are then going to want to multiply both sides by (yb) as the reciprocal to the fractions (3).
1)  3x    6g
     ---- = ---
     y       b

2)  3xb    6gy
     ------ = -----   
     yb       yb

3)       3xb    6gy
  (yb) ------ = -----  
          yb       yb
which becomes: 3xb = 6gy

So after this, things become much more simple, as all you have to do is isolate the (x), which can be done by dividing the entire equation by (3b).

3xb   6gy
----- = -----
3b      3b

where you will then find your answer of:
      2gy
x = -----       (simplified by the GCM of 3)
       b
5 0
3 years ago
An individual who has had chicken pox rarely gets this
marin [14]
This would be an example of active immunity
8 0
3 years ago
HELP PLZ!!<br> can the kinetic energy of an object be negative? explain
BARSIC [14]

Answer:

No it can not

Explanation: Kinetic energy is the energy of motion so it can not be negative the kinetic energy can only be at a point of "0" which is when its not moving. (I hope this helped) :))

7 0
2 years ago
1. Compare and contrast the SI and the English systems of measurement.
yulyashka [42]

Answer:The SI system is based on the number 10 as well as multiples and products of 10. This makes it much easier to use, and so it has been the accepted system in scientific and technical applications. The English system is more complicated as relationships between units of the same quantity aren't uniform.

Explanation:

5 0
3 years ago
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