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3 years ago

Which statement explains how gravity and inertia work together?

Physics

2 answers:

-Dominant- [34]3 years ago

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A. They change the motion of objects

Rudik [331]3 years ago

3 0

Answer:

Therefore, A.They change the motion of objects.

Explanation:

Gravity force that attracts a body toward the center of the earth, or toward any other physical body having mass.

Inertia : is a property of matter by which it continues in its existing uniform motion in a straight line, unless that state is changed by an external force.

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Astronomers can now report that active star formation was going on at a time when the universe was only 20% as old as it is toda

disa [49]

Answer:

First, as you may know, the light travels at a given velocity.

In vaccum, this velocity is c = 3x10^8 m/s.

And we know that:

distance = velocity*time

Now, if some object (like a star ) is really far away, the light that comes from that star may take years to reach the Earth.

This means that the images that the astronomers see today, actually happened years and years ago (So the night sky is like a picture of the "past" of the universe)

Also, for example, if an astronomer sees some particular thing, he can apply a model (a "simplification" of some phenomena that is used to simplify it an explain it) and with the model, the scientist can infer the information of the given thing some time before it was seen.

8 0

3 years ago

What type of force pulls in two opposite directions?

Natasha2012 [34]

Magnets facing the same way <span />

7 0

4 years ago

Read 2 more answers

Someone help please by providing work and answers please :)

Nastasia [14]

First we gotta use an equation of motion:

$d = ut + \frac{1}{2} a {t}^{2}$

Our vertical distance d= 100 m, initial vertical speed u = 0 m/s (because velocity is fully horizontal), and vertical acceleration a = 9.8 m/s2 because of gravity. Let's plug it all in!

$100 = 0 + \frac{1}{2} (9.8) {t}^{2}$

Now we just need to solve for t:

${t}^{2} = \frac{2(100)}{9.8} \\ \\ t = \sqrt{\frac{2(100)}{9.8}}$

Hit the calculators, and you'll get 4.5 seconds!

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3 years ago

ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements. A person walks along

Elza [17]

To find the total number of miles traveled by a person, we add the distance that he has traveled: 3.0 + 5.00 + 4.000.

Now, to find the accurate number of significant figures when adding measurements, the basic rule for addition is to use the least number of decimal places when reporting the result.

Now, since 3.0 has the least number of decimal places, we report the sum with 1 decimal place and have 12.0 miles as the total distance traveled by the person to reach his destination.

Answer: 12.0 miles

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4 years ago

The concentration of carbon monoxide in an urban apartment is 48 Î¼g/m3. What mass of carbon monoxide in grams is present in a r

Vedmedyk [2.9K]

Answer:

The answer is 3213.6 grams.

Explanation:

In meters the room dimensions are 3.05-3.2-6.86.

Total volume of the room is:

$3.05*3.2*6.86=66.95$

66.95 m3.

The density of carbon monoxide is 48 g/m3. Then total grams is present in a room measuring:

$66.95*48=3213.6$

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3 years ago