1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mote1985 [20]
3 years ago
14

Mischka is an amateur astronomer. Using her telescope, she looks out past the Earth’s atmosphere and observes an object with a l

ong, bright, cloud-like tail behind it. What is Mischka observing?
an asteroid
a meteorite
a comet
a meteoroid
Physics
2 answers:
alexgriva [62]3 years ago
6 0

Answer: a comet

Explanation:  

A comet is composed of rock, ice dust and frozen gases. Comets generally reside in the outskirts of the solar system i.e. Kuiper belt and Oort cloud.

When comets enter the solar system, the frozen gases sublimate and form the atmosphere of the comet. It is known as coma. As the comet nears the Sun, the coma expands as more frozen gases sublimate and extends backwards due to solar wind. A huge tail composed of gases and dust is formed and can be observed through telescope from Earth. This must be observed by Mischka.

topjm [15]3 years ago
3 0
A comet is long and also bright, which has a blue-ish color to it. 

Best Regards, Mike
You might be interested in
The carbon isotope 14C is used for carbon dating of archeological artifacts. 14C(mass 2.34×10−26kg) decays by the process known
Nookie1986 [14]

Answer:

2240.92365 m/s

Explanation:

m_1 = Mass of electron = 9.11\times 10^{−31}\ kg

v_1 = Speed of electron = 5.7\times 10^7\ m/s

p_2 = Neutrino has a momentum = 7.3\times 10^{-24}\ kg m/s

M = total mass = 2.34\times 10^{-26}\ kg

In the x axis as the momentum is conserved

Mv_x=m_1v_1\\\Rightarrow v_x=\dfrac{m_1v_1}{M}\\\Rightarrow v_x=\dfrac{9.11\times 10^{−31}\times 5.7\times 10^7}{2.34\times 10^{-26}}\\\Rightarrow v_x=2219.10256\ m/s

In the y axis

Mv_y=p_2\\\Rightarrow v_y=\dfrac{p_2}{M}\\\Rightarrow v_y=\dfrac{7.3\times 10^{-24}}{2.34\times 10^{-26}}\\\Rightarrow v_y=311.96581\ m/s

The resultant velocity is

R=\sqrt{v_x^2+v_y^2}\\\Rightarrow R=\sqrt{2219.10256^2+311.96581^2}\\\Rightarrow R=2240.92365\ m/s

The recoil speed of the nucleus is 2240.92365 m/s

3 0
3 years ago
Describe how engineers designed a parachute to create the forces needed to slow down the falling person.
shepuryov [24]

Answer:

Due to the resistance of air, a drag force acts on a falling body (parachute) to slow down its motion. Without air resistance, or drag, objects would continue to increase speed until they hit the ground. The larger the object, the greater its air resistance. Parachutes use a large canopy to increase air resistance. Also, Once the parachute is opened, the air resistance overwhelms the downward force of gravity. The net force and the acceleration on the falling skydiver is upward. An upward net force on a downward falling object would cause that object to slow down. The skydiver thus slows down. Sorry if not helpful.

8 0
3 years ago
Through Newton’s third law of motion, we know that if a rocket ship pushes down on the ground, the ground will push back up on t
vova2212 [387]
<span>C.
Equal Amount of Force</span>
6 0
3 years ago
The student makes a single pile of the 500 sheets of paper. Which a metre rule, she measured the height of the pile. The height
Cerrena [4.2K]

Answer:  please see attached work.

Explanation:  please see attached work.  Assuming 500 sheets of paper = 20 lb.  (typicical value).  

6 0
3 years ago
What is it called when a surface takes light in without reflecting it
andrew-mc [135]
Reflection from such a rough surface is called diffuse reflection and appears matte
7 0
3 years ago
Read 2 more answers
Other questions:
  • A granite monument has a volume of 25,365.4 cm3. The density of granite is 2.7 g/cm3. Use this information to calculate the mass
    13·1 answer
  • This problem uses the same concepts as Multiple-Concept Example 17, except that kinetic, rather than static, friction is involve
    7·1 answer
  • Applications of machine ​
    10·1 answer
  • Consider the previous situation. Under what condition would the acceleration of the center of mass be zero? Keep in mind that F1
    10·1 answer
  • What is the gravitational force between Earth and a 10 kg object on Earth’s surface?
    9·1 answer
  • Commander Shepard, an N7 spectre for Earth, weighs 799 N on the Earth's surface. When she lands on Noveria, a distant planet in
    10·1 answer
  • Fred (mass 60 kg) is running with the football at a speed of 6.0 m/s when he is met head-on by Brutus (mass 120 kg), who is movi
    14·1 answer
  • A 54.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 126 m/s from the top of a cliff
    5·1 answer
  • A bromine atom has an atomic number of 35 and an atomic mass of 80.
    14·1 answer
  • If the mass of the sun is 2x, at least one planet will fall into the habitable zone if I place a planet in orbits___, ____, ____
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!