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3 years ago

Why do meteorites contain information about the early solar system yet earth does not

Physics

1 answer:

Diano4ka-milaya [45]3 years ago

8 0

Answer:

See the explanation below.

Explanation:

That the milky way was generated by the explosion of a supernova (giant star in its last stage of life), when the content of this type of stars is based on all the existing materials as possible in the periodic table, in the moment of the explosion, a large amount of energy is released, some of these materials in the blast are left to drift, and the effect of the gravity are joining with each other, forming planets, the material that failed to form planets is orbiting freely low the attraction of the gravitational force of a new rising star, these asteroids have information about the life span of each of them, using a carbon 14 test, scientists can determine what period of formation the galaxy has.

Meteorites are solid that contain a lot of carbon, so tests on them can determine important information from the Galaxy

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The height of a cone is increasing at a rate of 10 cm/sec and its radius is decreasing so that its volume remains constant. How

ki77a [65]

Answer:

dr/dt = -2 cm/s.

Explanation:

The volume of a cone is given by:

$V=\frac{1}{3} \pi r^{2}h$ (1)

r is the radius
h is the height

Let's take the derivative with respect to time in each side of (1).

$\frac{dV}{dt}=\frac{1}{3} \pi \frac{d}{dt}(r^{2}h)=\frac{1}{3} \pi \left(2r\frac{dr}{dt}h+r^{2}\frac{dh}{dt} \right)$ (2)

We know that:

dh/dt = 10 cm / s (rate increasing of height)
dV/dt = 0 (constant volume means no variation with respect of time)
r = 4 cm
h = 10 cm

We can calculate how fast is the radius changing using the above information.

$0=\frac{1}{3} \pi \left( 2\cdot 4\cdot \frac{dr}{dt} \cdot 10 + 4^{2}\cdot 10)\right$

Therefore dr/dt will be:

$\frac{dr}{dt}=-\frac{160}{80}=-2 cm/s$

The minus signs means that r is decreasing.

I hope it helps you!

6 0

3 years ago

An experiment is performed aboard the International Space Station to verify that linear momentum is conserved during collisions

Anni [7]

Answer:

$v=15.9554\ m.s^{-1}$

Explanation:

Given:

mass of the honey drop 1, $m_1=35.5\times 10^{-3}\ kg$

velocity of the honey drop 1, $v_1=13.1\ m.s^{-1}$

mass of the honey drop 2, $m_1=52.3\times 10^{-3}\ kg$

velocity of the honey drop 2, $v_2=14.5\ m.s^{-1}$

mass of the honey drop 3, $m_1=75.7\times 10^{-3}\ kg$

velocity of the honey drop 3, $v_3=18.3\ m.s^{-1}$

<em>In ISS there is zero gravity an the collision is completely inelastic.</em>

<u>So, applying the law of conservation of momentum:</u>

$m_1.v_1+m_2.v_2+m_3.v_3=(m_1+m_2+m_3).v$

$35.5\times 10^{-3}\times 13.1+52.3\times 10^{-3}\times 14.5+75.7\times 10^{-3}\times 18.3=(35.5+52.3+75.7)\times 10^{-3}\times v$

$v=15.9554\ m.s^{-1}$

4 0

3 years ago

1. A wave can be described as (2 points)

laila [671]

Answer:

Well,

Explanation:

In a wave, energy is transported without the transport of water. Basically, a wave can be described as a disturbance that travels through a medium, transporting energy from one location to another location without transporting matter.

6 0

4 years ago

Question

Eva8 [605]

Answer:

here's the pdf for it

IB QuestionbankExplanation:

5 0

3 years ago

do you think the a black hole is a hole in between time and space and that is the answer to time travel

Tanzania [10]

A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it. Or survive butttttt we could never know unless we go through ourselves

4 0

3 years ago