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3 years ago

How did world cup soccer become cool?

1 answer:

5 0

It became cool because many people who likes ⚽️ soccer felt it atrcting and then they spreaded the world cup out and then people started.likeing it slot

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How can citizen -scientists help with the prediction of future earthquakes

iVinArrow [24]

Answer:

Avoid downed power lines and stay away from buildings and bridges from which heavy objects might fall during an aftershock. Stay away until local officials tell you it is safe. A tsunami is a series of waves that may continue for hours. Do not assume that after one wave the danger is over.

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3 years ago

Hey people text me at azieyafreeman2 at g mail dot com

butalik [34]

Answer:

Explanation:

or zo0m meet??

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3 years ago

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A circuit consists of resistors 170 Ω, 240 Ω, and 65 Ω connected in series with a 12-V battery. What is the voltage across resis

Lyrx [107]

Answer:

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Explanation:

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2 years ago

The wheel on an upside-down bicycle moves through 18.0 rad in 5.39 s. What is the wheel’s angular acceleration if its initial an

Elden [556K]

Explanation:

Formula to calculate angular acceleration is as follows.

$\Delta (\theta) = \frac{1}{2} \alpha \Delta t^{2} + \omega_{1} \Delta t$

or, $\alpha = \frac{2(\Delta (\theta) - \omega_{1} \Delta t)}{\Delta t^{2}}$

Putting the given values into the above formula as follows.

$\alpha = \frac{2(\Delta (\theta) - \omega_{1} \Delta t)}{\Delta t^{2}}$

= $\frac{2(18.0 rad - 2.5 rad/s \times 5.30 s)}{(5.39)^{2}}$

= 0.326 $rad/s^{2}$

Thus, we can conclude that the wheel’s angular acceleration if its initial angular speed is 2.5 rad/s is 0.326 $rad/s^{2}$ .

5 0

3 years ago

if a ball is accelerated downward at 9.8m/s, by how many meters per second does the object's velocity change every second?

Stella [2.4K]

The velocity will change (increase) by 9.8 m/s every second.

Why?

Since the ball is accelerated downward at $9.8\frac{m}{s^{2} }$ we can see that the ball is on "free fall". It means that the wall was dropped with no initial speed.

Now, if we want to know by how many meters per second does the object's velocity change every second, we need to understand the units of the acceleration. Let's write the equation of acceleration for better understanding.

$Acceleration=\frac{ChangeInVelocity(\frac{m}{s})}{time(s)}\\\\Acceleration=\frac{\frac{m}{s} }{s}=\frac{m}{s^{2} }$

So, from the equation we can see that the acceleration is changing the velocity every second.

Hence, if an object has the given acceleration (acceleration due to gravity, 9.8m/s2), it means that its speed will change (increase) by 9.8m/s every second.

Have a nice day!

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2 years ago