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3 years ago

5

A student observes a shadow move across the sun during a solar eclipse. Which list represents the position of Earth, the sun, an

d the
moon during this event?

A.sun, Earth, moon

B.moon, sun, Earth

C.Earth, sun, moon

D.sun, moon, Earth

1 answer:

Liono4ka [1.6K]3 years ago

3 0

It goes sun moon earth the moon is blocking us from seeing the sun.

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When drawing a Bohr model for an element that has 16 electrons, how many electrons would be placed in the third energy level?

lubasha [3.4K]

There would be 6 electrons placed on the third energy level.

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2 years ago

1pt Which is an observation? O A. A person hears the song of a bird. OB. A person suggests that bird calls are a means of commun

Doss [256]

Answer:

D

Explanation:

he describes as he writes them down

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3 years ago

Directions: Select ALL the correct answers.

nordsb [41]

Definitely D. The brakes on a bike rub against the wheel. Not sure about the others.

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3 years ago

Energy is released during the fission of pu-239 atoms as a result of the

pav-90 [236]

<h2>Answer: process of converting matter into energy</h2><h2></h2>

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Then, with this division a great release of energy occurs and the emission of two or three neutrons, other particles and gamma rays.

This means fission is a process in which energy is released by the separation of the components of the nucleous of the atom.

In other words:

<h2>Matter is converted to energy .</h2>

6 0

3 years ago

The 5-kg block A has an initial speed of 5 m/s as it slides down the smooth ramp, after which it collides with the stationary bl

Akimi4 [234]

Answer:

The coupled velocity of both the blocks is 1.92 m/s.

Explanation:

Given that,

Mass of block A, $m_1=5\ kg$

Initial speed of block A, $u_1=5\ m/s$

Mass of block B, $m_2=8\ kg$

Initial speed of block B, $u_2=0$

It is mentioned that if the two blocks couple together after collision. We need to find the common velocity immediately after collision. We know that due to coupling, it becomes the case of inelastic collision. Using the conservation of linear momentum. Let V is the coupled velocity of both the blocks. So,

$m_1u_1+m_2u_2=(m_1+m_2)V\\\\V=\dfrac{m_1u_1+m_2u_2}{(m_1+m_2)}\\\\V=\dfrac{5\times 5+0}{(5+8)}\\\\V=1.92\ m/s$

So, the coupled velocity of both the blocks is 1.92 m/s. Hence, this is the required solution.

8 0

3 years ago