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Snowcat [4.5K]
3 years ago
8

Volcanoes often form belts along plate boundaries. How does the piece of art illustrate that this statement holds true for North

America? explain.
Physics
1 answer:
STALIN [3.7K]3 years ago
4 0

Answer:

The formation of volcanic arcs, trenches and subsidence leads to the production of volcanic eruptions.

Explanation:

  • North America plate makes a convergent boundary along with the pacific oceans. The is man reason for the development of the volcanoes and the origin of the earthquakes. The collusion of both these pales leads to the formation of a volcanic ring of fire that can be seen in the pacific ocean.
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Calculate the maximum absolute uncertainty for R if:
erma4kov [3.2K]

Answer:

 ΔR = 5 s

Explanation:

The absolute uncertainty or error in an expression is

       ΔR = | \frac{dR}{dB} | ΔB + | \frac{dR}{dA} | ΔA

the absolute value guarantees to take the unfavorable case, that is, the maximum error.

We look for the derivatives

       \frac{dR}{dB} = 1

       \frac{dR}{dA} = -1

we substitute

       ΔR = 1 ΔB + 1 ΔA

       

of the data

       ΔB = 3 s

       ΔA = 2 s

         

       ΔR = 3 + 2

       ΔR = 5 s

7 0
3 years ago
What is the pathway of sound through fluids starting at the oval window through to dissipation of the sound waves at the round w
ruslelena [56]
Perilymph of scala vestibule; endolymph of cochlear duct; perilymph of scala tympani
6 0
3 years ago
A vector of magnitude 20 is added to a vector of magnitude 25. The magnitude of this sum. might be:. A. zero. B. 3. C. 12. D. 47
kiruha [24]
The correct answer among the choices provided is option C. The magnitude of the sum of 20 and 25 might be 12. Inequality triangle equation is used to determine if 12 is right.
<span>12+20 > 25 (correct)
12+25 > 20 (correct)
20+25 > 12 (correct)</span>
6 0
4 years ago
To make a pendulum, a 210 g ball is attached to one end of a string that has a length of 1.2 m and negligible mass. (The other e
lakkis [162]

Answer:

a) v \approx 1.233\,\frac{m}{s}, b) v \approx 1.426\,\frac{m}{s}, c) \theta_{2} \approx 22.61^{\textdegree}

Explanation:

a) The speed of the ball is determined by applying the Principle of Energy Conservation:

U_{g,1} + K_{1} = U_{g,2} + K_{2}

The speed of the ball when the string makes an angle of 12° with the vertical is:

K_{2} = U_{g,1} - U_{g,2} + K_{1}

\frac{1}{2}\cdot m \cdot v^{2} = m\cdot g \cdot L \cdot [(1-\cos \theta_{1})-(1 -\cos \theta_{2})]

v = \sqrt{2\cdot g \cdot L \cdot (\cos \theta_{2} - \cos \theta_{1})}

v = \sqrt{2\cdot (9.807\,\frac{m}{s^{2}} )\cdot (1.2\,m)\cdot (\cos 12^{\textdegree}-\cos 24^{\textdegree})}

v \approx 1.233\,\frac{m}{s}

b) The maximum speed of the ball is:

v = \sqrt{2\cdot g \cdot L \cdot (\cos \theta_{2} - \cos \theta_{1})}

v = \sqrt{2\cdot (9.807\,\frac{m}{s^{2}} )\cdot (1.2\,m)\cdot (\cos 0^{\textdegree}-\cos 24^{\textdegree})}

v \approx 1.426\,\frac{m}{s}

c) The angle between the string and the vertical when the speed of the ball is one-third its maximum value is obtained by proving different values of \theta_{2}. The solution is approximately:

\theta_{2} \approx 22.61^{\textdegree}

5 0
3 years ago
Train is traveling at an initial velocity of 68.325m/s. After 23.75 seconds it speeds up to a final velocity of 79.32m/s. What i
wariber [46]
So,

We know that:
acceleration =  \frac{ final\ velocity\ -\ initial\ velocity}{time}

Plug in the values.
acceleration =  \frac{79.32 m/s^{2}\ -\ 68.325m/s^{2}}{23.75 secs}
acceleration =  \frac{10.995m/s^{2} }{23.75 secs}
acceleration = 0.4629 m/s^{2}
8 0
4 years ago
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