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Dovator [93]
4 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]4 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]4 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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Option C

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3 years ago
Dolphins rely on echolocation to be able to survive in the ocean. In a 20 °C ocean, a dolphin produces an ultrasonic sound with
Firdavs [7]

Answer:

wavelength =  0.01 m

distance = 162.8 m

Explanation:

Given that;

Speed of sound in water = 1,480 meters per second

Frequency of ultrasound = 125KHZ

From=

v=λf

v= speed of sound

λ= wavelength of sound

f= frequency of sound

λ= 1,480 ms-1/125 * 10^3 Hz

λ= 0.01 m

From

v = 2x/t

where;

v= velocity of sound in water

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t = time taken

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8 0
3 years ago
Match the measurements with the proper SI unit.
Ivan

Answer:

Acceleration:

C. Meters per second squared

Velocity:

B. Meters per second

Distance:

A. Meters

Explanation:

We must remember that the international system of measures (SI) takes into account for the length as the main unit the meter, for the mass the kilogram, for the time the second.

The acceleration is calculated using the following expression

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The distance for the SI system is given in meters

7 0
4 years ago
Read 2 more answers
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