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
icang [17]
3 years ago
9

Describe the two types of comet tails and how each are formed.

Physics
1 answer:
sesenic [268]3 years ago
6 0
There are two main types of cometary tails: the ion and dust tail.

NOTE: you can use quizlet, is helps out a lot

You might be interested in
Which of the following statements is TRUE for high-visibility clothing? A. High-visibility clothing helps to reduce insect probl
Mazyrski [523]
C. High-visibility clothing is important to wear in areas with moving vehicles
5 0
3 years ago
Read 2 more answers
Explain Rutherford's experiment?
Ipatiy [6.2K]

Answer:

Rutherford bombarded aluminum foil with beam of light known as alpha particles. The mass of this alpha particle is equivalent to helium atom.

Explanation:

Rutherford bombarded aluminum foil with beam of light known as alpha particles. The mass of this alpha particle is equivalent to helium atom.

When this alpha particles were made to strike the aluminum foil, some passed through the foil, some were reflected and speed others changed.

The ones reflected encountered heavier particle known as the nucleus, preventing them from passing through it. The whole observations indicated that atom is not is uniformly charged sphere as proposed by J.J Thomson.

Rutherford proposed new model known as the Planetary model of atom, which described atom as containing a nucleus which is revolved by electron, just like planets revolve round the sun. And this nucleus contains opposite charge to electron which is proton, to balance the motion.

7 0
3 years ago
Which of the following is the best definition of an element?
Ostrovityanka [42]

Answer:

A. chemical substance whose atoms all have the same number of protons

Explanation:

An element is a substance which contains identical atoms that have the same number of protons in the nucleus.

Elements are arranged in the periodic table according to their atomic number (= number of protons): so atoms of different elements have a different number of protons in their nuclei.

For a neutral atom, the number of electrons around the nucleus is also equal to the number of protons.

Moreover, atoms of the same element can have a different number of neutrons, despite having the same number of protons - these atoms are called isotopes.

8 0
3 years ago
A train travels 4200 km in 90 hours. What is its speed?
denis23 [38]

Answer: I think its 120

Explanation: thx for the free points :)

6 0
2 years ago
Valerie is preparing a blood sample for analysis. She wants to separate the solid red blood cells and obtain only the liquid por
liraira [26]
<span>First, she should put the sample in a test tube and place it in a centrifuge. This would cause the red blood cells to move to the bottom because of their higher density. Next, she would be able to decant the plasma and analyze it separately from the red blood cells.</span>
4 0
3 years ago
Read 2 more answers
Other questions:
  • Is it true that atmospheric oxygen gas is a pure substance?
    6·1 answer
  • Calculate the weight of a 25kg object?
    15·1 answer
  • A dumbbell-shaped object is composed by two equal masses, m, connected by a rod of negligible mass and length r. If I_1 is the m
    9·1 answer
  • Which years had the least sunspot activity?
    13·1 answer
  • A block slides to a stop as it goes 47 m across a level floor in a time of 6.35 s. a) What was the initial velocity? b) What is
    14·1 answer
  • Time time it takes two successive crests of an ocean wave to pass a given point is called
    5·1 answer
  • . A paper airplane of .025kg is falling at a rate 2m/s2. What is the amount of net force?
    9·1 answer
  • Order these sounds from loudest (1) to softest (4). airplane: whisper: crowd at sporting event: rainfall:
    15·2 answers
  • Describe friction force (Ffr) in your own words
    10·1 answer
  • Suppose a standing wave created on a spring that is 10.5 m long has a speed of 14 m/s and a frequency of 2 Hz. How many nodes an
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!