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Dovator [93]
3 years ago
7

A new object, Object Z, was discovered outside our solar system. Object Z is made of frozen gases that surround a rocky core and

it travels in a highly elliptical orbit around the sun. The characteristics of Object Z most closely resemble those of other
A. asteroids.
B. dwarf planets.
C. comets.
D. moons.
Physics
2 answers:
FinnZ [79.3K]3 years ago
8 0

That's the familiar description of a comet.

If I were the amateur astronomer who discovered the new comet, then
according to the tradition of the astronomical community, I would have
the privilege of naming it.  I would call it  Comet AL2006/2016. 
Masja [62]3 years ago
8 0

Answer:  C. comets.

Explanation:

  • Asteroids are rocky objects majority of which are found in belt between orbits of Mars and Jupiter. Example: Ceres
  • Dwarf planets are similar in composition to planets and are found in Kuiper belt. Pluto is a dwarf planet.
  • A comet has a solid rocky core surrounded by atmosphere of frozen gases. Comets are present in the outskirts of the solar system and orbit the Sun in an elliptical orbit.
  • Moons are are natural satellites revolving about planets. Example: Titan, Phobos and Deimos etc.

Object Z is made of frozen gases that surround a rocky core and it travels in a highly elliptical orbit around the sun.  The characteristics are similar to ones of comets. Thus, object Z closely resembles a comet.

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Blizzard [7]

The average speed of the whole travel is equal to <u>400 mph</u>.

Why?

From the statement, we know that whole travel is divided into three parts. For the first part (traveling from New York to Chicago), we have that it was 3.25 hours and the covered distance was half of the total distance (1400mi). For the second part, we have that it was 1 hour (layover time), and the covered no distance. For the third part (traveling from Chicago to Los Angeles), we have that it was 2.75 hours, and it took the other half of the total distance (1400mi).

We can calculate the average speed of the whol travel using the following formula:

AverageSpeed=\frac{distance_{1}+distance_{2}+distance_{3}}{time_{1}+time{2}+time_{3}}

Now, substituting and calculating, we have:

AverageSpeed=\frac{1400mi+0mi+1400mi}{3.25h+1h+2.75h}

AverageSpeed=\frac{2800mi}{7h}=400mph

Hence, we have the average speed of the whole travel is equal to 400 mph.

Have a nice day!

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An Na ion has a charge of +1 and an O ion has a charge of –2. How many Na ions does one O ion need to balance charges
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Because Na⁺ ion lacks an electron and O²⁻ has two extra electrons extra, to balance the charge, we need 2 Na⁺ ions.
 
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