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valentinak56 [21]
3 years ago
13

Which volcanic hazard can block the sunlight and temporarily cool the Earth’s surface?

Physics
2 answers:
BaLLatris [955]3 years ago
8 0
If a volcano epulses massive amounts of dust into the atmosphere, those two things will/can happen.
The events will last until the dust lays down on the earth.

postnew [5]3 years ago
6 0
The volcanic hazard that can block sunlight and cool earth i think is stone
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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
seraphim [82]

The correct answer is:

Does the measurement include direction?

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What causes changes of states in matter?
miv72 [106K]
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3 years ago
A 20-lb force acts to the west while an 80-lb force acts 45° east of north. The magnitu 80 lb 70 lb 067 lb 100 lb
olga55 [171]

Answer:

  • The magnitude of the resulting force is 67 lbf.

Explanation:

Taking the east as the positive x direction, and the north as the positive y direction.

The first force points west, this is, in the direction of -\hat{i}, so, is

\vec{F}_1 = - 20 \ lbf \ \hat{j}

\vec{F}_1 = (0 , - 20 \ lbf \)

For the second force, knowing the magnitude and directions relative to the x axis, we can find Cartesian representation of the vectors using the formula

\ \vec{A} = | \vec{A} | \ ( \ cos(\theta) \ , \ sin (\theta) \ )

where | \vec{A} | is the magnitude of the vector and θ the angle with the positive x direction.

So, the second force is

\vec{F}_2 = 80 \ lbf \ \ ( \ cos(45 \°) \ , \ sin (45 \°) \ )

\vec{F}_2 = ( \ 56.5685 \ lbf \ , \ 56.5685 \ lbf \ )

The net force will be :

\vec{F}_{net} = \vec{F}_1 + \vec{F}_2

\vec{F}_{net} = (0 , - 20 \ lbf \) + ( \ 56.5685 \ lbf \ , \ 56.5685 \ lbf \ )

\vec{F}_{net} =  ( \ 56.5685 \ lbf \ , \ 56.5685 \ lbf \ - 20 \ lbf  )

\vec{F}_{net} =  ( \ 56.5685 \ lbf \ , \ 36.5685 \ lbf \  )

To obtain the magnitude, we can use the Pythagorean Theorem

|\vec{F}_{net}| = \sqrt{F_{net_x}^2 +F_{net_y}^2}

|\vec{F}_{net}| = \sqrt{( \ 56.5685 \ lbf \ )^2 +( \ 36.5685 \ lbf \ )^2}

|\vec{F}_{net}| = 67.36 \ lbf

And this is the magnitude we are looking for.

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2 years ago
If it takes light 26,000 years to travel from the Sun to the center of the Milky Way galaxy, how far is the Sun from the center
worty [1.4K]
Since the light travels in the vacuum then its velocity will be C=3*10^8 m/sec.....then you will convert it to secs=28000*365*24*60*60=8.83008*10^11
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3 0
3 years ago
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A helicopter flies with an airspeed of 42.5 m/s [W]. If the wind is traveling with a velocity of 25.0 m/s [E30°S] relative to th
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Answer:

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Explanation:

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