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
Naya [18.7K]
2 years ago
7

? Any idea on this I’m getting some mixed up

Physics
1 answer:
Lana71 [14]2 years ago
3 0

Answer:

1. electrochemical reaction

2. combustion

3. photosynthesis

4. respiration

Explanation:

You might be interested in
How does a comet change as it travels through space
AfilCa [17]
Comets are like "dirty snowballs"; frozen gasses with dust and rocks in them. Each pass near the Sun causes the comet's nucleus to be exposed to intense sunlight, which causes some tiny fraction of the gas to evaporate and carry some of the dust and rock away into space. The gas and dust, near the Sun, cause the comet's "tail", and repeated passes cause dust and rock to spread out along most of the orbit of a comet. When the Earth enters one of these trails of old comet dust, we have meteor showers. 

<span>On rare occasions, comets break apart or even more rarely, crash into planets. In 1994, the comet Shoemaker-Levy 9 broke apart and then collided with the planet Jupiter.</span>
5 0
3 years ago
SOMEBODY PLEASE HELP!! 20 PTS!!!
aliya0001 [1]

Answer:

1. Reflection

2. travel from one medium to another

3. Same waves to travel in opposite direction.  

Explanation:

1. When a wave strikes a solid barrier, it bounces back in the same medium. This wave behavior of bouncing back is known as reflection. Its like a basketball hitting a backboard. The ball bounces back at the same angle as it was incident. ∠i = ∠r

2. For refraction to occur in a wave, the wave must travel from one medium to another. When light travels from through mediums of different optical densities, it bends. The wave bends away normal when it enters from denser medium to rarer medium. The wave bends towards the normal when it enters from rarer to denser medium. The angle of refraction and angle of incidence are related by Snell's law.

\frac{sin(i)}{sin(r)} = \frac{\mu_2}{\mu_1}

3. The formation of standing wave requires two same waves to travel in the opposite direction and interfere. The incident wave and reflected wave when interfere, form standing waves. There waves are also resonances or harmonics. A standing wave oscillates at one place and does not transfers any energy.

3 0
3 years ago
Read 2 more answers
The ability to react with air is a
seraphim [82]
I already said it but its reactivity
7 0
3 years ago
Read 2 more answers
2Mg+2HCI TO 2MgCI+2H2
motikmotik
2Mg + 2HCl →2MgCl + 2H₂

Balanced is:

4Mg + 4HCl → 4MgCl + 2H₂

I Hope I Helped 

ΩΩΩΩΩΩΩΩΩΩ
6 0
3 years ago
Why is there no drag in space?????? Help me please!!! Thanks!!!
astraxan [27]
It is beacuse of fluid If there is no fluid, there is no drag. Drag is generated by the difference in velocity between the solid object and the fluid. If this statement is correct then how can there be drag in space if there is no air?
7 0
4 years ago
Read 2 more answers
Other questions:
  • Flooding on rivers is caused by human activity rather than natural events. Please select the best answer from the choices provid
    8·2 answers
  • slader A steel bar is 150 mm square and has a hot-rolled finish. It will be used in a fully reversed bending application. Sut fo
    7·1 answer
  • How is specific gravity or density used in identifying​ minerals
    14·1 answer
  • In a physics laboratory experiment, a coil with 250 turns enclosing an area of 14 cm2 is rotated in a time interval of 0.030 s f
    9·1 answer
  • A soccer ball is released from rest at the top of a grassy incline. After 4.1 seconds, the ball travels 43 meters and 1.0 s afte
    6·1 answer
  • 1). An Owl and bat share the same kingdom and phylum; an owl and a cardinal share the same kingdom, phylum, and class. The owl a
    8·2 answers
  • A string has 8 N of tension. When it is vibrated at 2 Hz, a standing wave forms with a wavelength of 4 cm and an amplitude of 1
    8·1 answer
  • Most of the motion generated by joints in the human body are examples of levers. An example of a third class lever is the forear
    15·1 answer
  • Un bloque de 20kg de masa se desplaza horizontalmente en la dirección de eje X por acción de una fuerza horizontal variable F =
    15·1 answer
  • An electromagnetic wave with frequency 65.0Hz travels in an insulating magnetic material that has dielectric constant 3.64 and r
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!