3 years ago

In order to be considered an ion, an atom must have a

1 answer:

4 0

Positive or negative charge (because an atom becomes an ion when it loses or gains electrons, changing the neutral charge)

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WARRIOR [948]

Center.........................

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3 years ago

Anarel [89]

And.. where is the rest of the question?

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3 years ago

Sergio039 [100]

I don’t think I will have any time to go

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3 years ago

kati45 [8]

Answer:

7.5 miles

Explanation:

0.25 hours=15minutes.

So you do

30 miles=60minutes

x =15minutes

cross multiply

Ans-7.5

7 0

3 years ago

mylen [45]

Answer:

Angular acceleration, is $708.07\ rad/s^2$

Explanation:

Given that,

Initial speed of the drill, $\omega_i=0$

After 4.28 s of constant angular acceleration it turns at a rate of 28940 rev/min, final angular speed, $\omega_f=28940\ rev/min=3030.58\ rad/s$

We need to find the drill’s angular acceleration. It is given by the rate of change of angular velocity.

$\alpha =\dfrac{\omega_f}{t}\\\\\alpha =\dfrac{3030.58\ rad/s}{4.28\ s}\\\\\alpha =708.07\ rad/s^2$

So, the drill's angular acceleration is $708.07\ rad/s^2$ .

4 0

3 years ago