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Troyanec [42]
3 years ago
6

Where would you look for some “original” planetesimals left over from the formation of our solar system?

Physics
1 answer:
alexandr402 [8]3 years ago
6 0

Answer:

Asteroid Belt and Kuiper belt

Explanation:

When solar system was forming a the leftover material was concentrated in Asteroid belt (between Mars and Jupiter) and Kuiper belt (which starts just after the orbit of Neptune). These two belts contain various small bodies called as planetesimals or asteroids which can give a lot of information about the early solar system.

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Which of the following is a correct definition of radiant energy?
ValentinkaMS [17]
Radiant energy is the energy of electromagnetic and gravitational radiation
6 0
3 years ago
Read 2 more answers
With "normal" gravity, we used a potential energy of mgh. Now with the gravity that is more accurate over longer distances we us
Artemon [7]

Answer:

A general solution is \Delta U=mh\frac{GM}{r^{2}}\frac{r}{r+\Delta h} and a particualr case is mgh, it is just to distance around the radius Earth.

Explanation:

We can use a general equation of the potential energy to understand the particular and general case:

The potential energy is defined as U=-\int F\cdot dx, we know that the gravitational force is F=GmM/r^{2}, so we could find the potential energy taking the integral of F.

U=-GmM/r (1)

We can find the particular case, just finding the gravitational potential energy difference:

\Delta U=U_{f}-U_{i}. Here Uf is the potential evaluated in r+Δh and Ui is the potential evaluated in r.

Using (1) we can calculate ΔU.

\Delta U=-\frac{GmM}{r+\Delta h}+\frac{GmM}{r}

Simplifying and combining terms we have a simplified expression.

\Delta U=mh\frac{GM}{r^{2}}\frac{r}{r+\Delta h} (2)

Let's call g=\frac{GM}{r^{2}}. It is the acceleration due to gravity on the Earth's surface, if r is the radius of Earth and M is the mass of the Earth and we can write (2) as ΔU=mgh, but if we have distance grader than r we should use (2), otherwise, we could get incorrect values of potential energy.

I hope i hleps you!

3 0
4 years ago
Jim travelled the first 3 hours of his journey at speed of 60 mph and the remaining 5 hours at 24 mph how long is the whole jour
frosja888 [35]
Distance of first instance = speed * Time
= 60 * 3 = 180 miles

Distance of second instance = speed * Time
= 24 * 5 = 120 miles

So, Total Distance = 180 + 120 = 300 miles

In short, Your Answer would be 300 miles

Hope this helps!
4 0
3 years ago
What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common? A) They are opaque. B) They refract light.
Elena L [17]
By definition, when the speed of the light changes when it passes from a material to another, this is called "Refraction of light". This happens when there is a difference in the index of refraction between both mediums o materials. Therefore, that speed depends of <span>the medium through  it passes. 
</span> 
 T<span>he index of refraction</span> is expressed as below: 
 n=c/v
 
 "n"  is <span>the index of refraction.
</span> "c" is <span>is the speed of light.
</span> "<span>v" is the phase velocity of light in the medium.
</span> 
 A prism, a magnifying glass, a microscope, and eyeglasses refract light. Therefore, the correct option is: B) They refract light.
6 0
3 years ago
Read 2 more answers
A large vessel of the diameter of 14 mm divides into two identical smaller vessels but the velocity of blood in
ycow [4]

Answer:

the diameter of the smaller vessels is 9.90 mm

Explanation:

The computation of the diameter of the smaller vessels is given below;

Given that

The larger vessel of the diameter is 14mm

So,

d1 = 7 mm

let us assume the diameter of the smaller artery is d2

Now we used the equation of continuity i.e.

v × pi × d1^2 = 2 × v × pi × d2^2

14^2 = 2 × d2^2

d2 = 9.90 mm

Hence, the diameter of the smaller vessels is 9.90 mm

5 0
3 years ago
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