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hammer [34]
3 years ago
6

Mount st Helens is a volcano that erupted with great force in 1980 which phrase

Physics
2 answers:
Rashid [163]3 years ago
5 0

Answer:

high-viscosity magma and lava broken into fragments

Explanation:

ololo11 [35]3 years ago
3 0
Which phrase is there more information I’m confused sorry
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An instrument is thrown upward with a speed of 15 m/s on the surface of planet X where the acceleration due to gravity is 2.5 m/
Katen [24]
<h2>Answer: 12 s</h2>

Explanation:

The situation described here is parabolic movement. However, as we are told <u>the instrument is thrown upward</u> from the surface, we will only use the equations related to the Y axis.

In this sense, the main movement equation in the Y axis is:

y-y_{o}=V_{o}.t-\frac{1}{2}g.t^{2}    (1)

Where:

y  is the instrument's final position  

y_{o}=0  is the instrument's initial position

V_{o}=15m/s is the instrument's initial velocity

t is the time the parabolic movement lasts

g=2.5\frac{m}{s^{2}}  is the acceleration due to gravity at the surface of planet X.

As we know y_{o}=0  and y=0 when the object hits the ground, equation (1) is rewritten as:

0=V_{o}.t-\frac{1}{2}g.t^{2}    (2)

Finding t:

0=t(V_{o}-\frac{1}{2}g.t^{2})   (3)

t=\frac{2V_{o}}{g}   (4)

t=\frac{2(15m/s)}{2.5\frac{m}{s^{2}}}   (5)

Finally:

t=12s

3 0
4 years ago
Tell the difference between an internal and an external influence and give 1 examples of each.
Morgarella [4.7K]

Answer:

Si tienen diferencia

Explanation: Internas: Proviene de la herencia; el legado genético que las personas reciben de sus padres.

Externa: Provienen de las experiencias personales frente

al mundo exterior

3 0
4 years ago
What is momentum equal to?
Setler [38]

Answer:

D

Explanation:

mass times velocity

hope this help

8 0
3 years ago
A 1.0 kg object is attached to a 0.50 m string. It is twirled in a horizontal circle above the ground at a speed of 5.0 m/s.
7nadin3 [17]

Given that,

Mass of the object, m = 1 kg

It moves in a circle of radius 0.5 m with a speed of 5 m/s

To find,

The direction of the acceleration.

Solution,

Whenever an object moves in a circular path, the only force that acts on its is centripetal force which is given by the formula as follows :

F=\dfrac{mv^2}{r}

The centripetal acceleration acts in the direction of force. It acts along the radius of the circular path. In this figure, the direction of the acceleration is shown at point d.

4 0
3 years ago
A scientist conducted research and plotted his results in the histogram shown below. Which of the
ludmilkaskok [199]

Answer:

Median

Explanation:

  • we commonly use mean as the measure of the center of the data.
  • But Median is better measure than mean.

<u>Extra</u><u> </u><u>information</u><u>:</u><u>-</u>

<u>Median</u><u> </u><u>formula</u><u>:</u><u>-</u>

\boxed{\begin{minipage}{6cm}$\bigstar$\:\:\sf Median = l + $\sf\dfrac{\frac{n}{2}-C.f.}{f}\times h\\\\Here: \\1)\:n = \sum f =\\2)\:l=Lower\:limit\:of\:median\:class=\\3)\:C.f.=Cumulative\:frequency\:of\:class\\preceeding\:the\:median\:class=\\4)\:f= frequency\:of\:median\:class=\\5)\:h= Class\:interval = \end{minipage}}

6 0
3 years ago
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