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
irga5000 [103]
3 years ago
7

An aurora occurs when _____.

Physics
2 answers:
drek231 [11]3 years ago
6 0
The correct answer is A. Charged particles from the sun exite the atmosphere near the poles to create auroras.
Bas_tet [7]3 years ago
6 0

Answer:

An aurora occurs when <u>the Earth's magnetic field is overwhelmed by charged ions.</u>

Explanation:

The Earth acts as a huge bar magnet. Magnetic field surrounds the Earth. when the charged particles coming from the sun interact with the magnetic field, beautiful colors can be seen in the sky. These are known as auroras. The color depends upon the gas present in the atmosphere. The electrons of gain energy and jump to higher level and then release photons when return back to its level.

You might be interested in
If a molecule has four hybrid sp3 orbitals, it can be concluded that the molecule has a
Lilit [14]
If a molecule is found to have four hybrid sp3 then we say that it has a <span>tetrahedral molecular geometry. thsi is the correct term to define this type of molecules. So your option would be C. Hope this is useful</span>
7 0
3 years ago
Read 2 more answers
Where are a hurricanes fastest winds and heaviest rain found?
PSYCHO15rus [73]
The fastest winds and heaviest rain is found in the eye of the hurricane.
8 0
3 years ago
A rope of negligible mass passes over a uniform cylindrical pulley of 1.50kg massand 0.090m radius. The bearings of the pulley h
boyakko [2]

Answer:

Explanation:

mass of pulley, m3 = 1.5 kg

Radius of pulley, R = 0.09 m

mass of monkey, m2 = 4.5 kg

mass of banana bunch, m1 = 3 kg

Let a is teh acceleration ans T1 and T2 be the tension in the rope.

The moment of inertia of the pulley

I = 0.5 x m3 x R² = 0.5 x 1.5 x 0.09 x 0.09 = 0.006075 kgm²

According to Newton's second law

T1 - m1 g = m1 x a .... (1)

m2 g - T2 = m2 x a ..... (2)

(T2 - T1 ) x R = I x α    

where, α is the angular acceleration

α = a / R

(T2 - T1)R = 0.5 x m3 x R² x a / R

T2 - T1 = 0.5 x m3 x a ..... (3)  

from (1), (2) and (3)

a = \frac{m_{2}-m_{1}}{m_{1}+m_{2}+\frac{m_{3}}{2}}\times g

a = \frac{4.5-3}{3+4.5+0.75}\times 9.8

a = 1.78 m/s²

from equation (1)

T1 = m1 ( g + a) = 3 ( 9.8 + 1.78) = 34.77 N

from equation (2)

T2 = m2 (g - a) = 4.5 (9.8 - 1.78) = 36.13 N

4 0
3 years ago
Provide one example of how Science drives Technology.
evablogger [386]

Answer:

Scientific knowledge is used to create new technologies. New technologies often allow scientists to explore nature in different ways and make new discoveries.

Explanation:

7 0
2 years ago
Read 2 more answers
What is a prediction
faust18 [17]
An educated guess about something. (What might happen in the future)
7 0
3 years ago
Read 2 more answers
Other questions:
  • Earthquake information would most likely be shown on which type of map?
    9·1 answer
  • i need to know The Sun and Moon seem to move across the sky each day because of Earth's ____________________ on its axis. The Mo
    10·1 answer
  • Most of an atom is empty space.<br> a. True<br> b. False
    12·2 answers
  • A multi-plattered hard disk is divided into 1100 sectors and 40,000 cylinders. There are six platter surfaces. Each block holds
    5·1 answer
  • Surviving a ship wreck, what is the minimum mass of wood (density 60% that of sea water) necessary to support a 70kg woman stand
    6·1 answer
  • What is an example of a reservoir?<br> 1. Beach<br> 2. Cloud<br> 3. Desert<br> 4. Lake
    7·2 answers
  • PLS HELP ASAP (no links)
    13·2 answers
  • The magnitudes of the two displacement vectors are _____ and ______
    10·2 answers
  • When capacitors are connected in parallel, they have the same:.
    15·1 answer
  • Which is heavier a pound of bricks or a pound of feather
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!