4 years ago

What keeps an ionic bond held together?

1 answer:

4 0

In Ionic bonds one atom is positively charged and the other atom is negatively charged, therefore, it is the opposite charge of the ions that attracts them to one another and holds them together.

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How would you calculate an object’s mechanical energy? a. Add its kinetic and potential energies. b. Multiply its kinetic and po

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A. Add it's Kinetic and Potential energies

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4 years ago

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The student in item 1 moves the box up a ramp inclined at 12° with the horizontal. if the box starts from rest at the bottom of

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3 years ago

To be a healthy family, which of the statements below is TRUE:

Ipatiy [6.2K]

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wait what do u mean by healthy beccause i choose C

Explanation:

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Suppose a child drives a bumper car head on into the side rail which exerts a force of 4000 N on the car for 0.200 s. What impul

Ghella [55]

Por the impulse, use the formula:

I = F * t

Now, we know:

4000 N = 4000 kg*m/s²

Replacing we have:

I = 4000 kg*m/s² * 0,200 s

Resolving:

I = 800 kg.m/s²

The impulse is <u>800 kg.m/s²</u>

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3 years ago

Turning a corner at a typical large intersection in a city means driving your car through a circular arc with a radius of about

Naddik [55]

Answer:

9.89 m/s.

Explanation:

Given that,

The radius of the circular arc, r = 25 m

The acceleration of the vehicle is 0.40 times the free-fall acceleration i.e.,a = 0.4(9.8) = 3.92 m/s²

Let v is the maximum speed at which you should drive through this turn. It can be solved as follows :

$a=\dfrac{v^2}{r}\\\\v=\sqrt{ar} \\\\v=\sqrt{3.92\times 25} \\\\=9.89 m/s$

So, the maximum speed of the car should be 9.89 m/s.

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3 years ago