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
Step2247 [10]
3 years ago
13

Air is composed primarly of which of the following gases?

Physics
1 answer:
romanna [79]3 years ago
6 0
Nitrogen and carbon dioxide
You might be interested in
An object is five focal lengths from a concave mirror.how do the object and image heights compare?
enot [183]

An object distance is presented as s = 5f and we know that the mirror equation relates the image distance to the object distance and the focal length.

The mirror equation is 1/f = 1/s + 1/s’ where the variable f stands for the focal length of the mirror. Variable (s) represents the distance between the mirror surface and the object and the variable <span>(s’) represents the distance between the mirror surface and the image. </span>

In addition, a concave mirror will have a positive focal length (f) and a convex mirror will have a negative focal length (f).

Now, we then have 1/f = 1/5f + 1/s’ which is s’ = 5f/4

Then we get the magnification ratio that expresses the size or amount of magnification or reduction of the object or image and to get the magnification, we use this equation: M= s’/s

M= 5f/4x5f

s’ = 1/4s

Therefore, the image height is one fourth of the object height

7 0
3 years ago
A velocity-time graph shows how what changes over time.
Mnenie [13.5K]

Answer:

velocity changes over time.

6 0
2 years ago
PLEASE HELP 100 POINTS! Please fill in the scale distance from sun and diversion factor, listing off the numbers works
steposvetlana [31]

Solved your another question same like this with scaling to Cm this time we go with metre(m)

Scale factor

  • 1km=10³m
  • 1m=10^{-3}km

Mercury

  • 58000m

Ven us

  • 108000m

Earth

  • 150000m

Mars

  • 228000m

Jupiter

  • 778000m

Saturn

  • 1430000m

Uranus

  • 2870000m

Neptune

  • 4500000m

7 0
2 years ago
The mussels are not native to the lakes, and they have begun to kill native mussels by attaching to them and covering them up. T
Tanya [424]
The zebra mussels are an invasive species
4 0
3 years ago
một ô tô chuyển động nhanh dần đều.Sau 10s vận tốc của xe tăng từ 2m/s lên 6m/s.Tính gia tốc của ô tô
Serjik [45]

Answer:

áp dụng công thức í, mình thấy câu này có rắc rối gì đâu

8 0
2 years ago
Other questions:
  • Match each term to the best description. ::
    9·1 answer
  • The phospholipid molecule has two parts, the polar end and the bipolar end.<br> True or false
    14·1 answer
  • The weight of a box is found to be 30 N. What is the approximate mass of the box?
    11·2 answers
  • One observer stand on a train moving at a constant speed, and one observer stands at rest on the ground. The person on the train
    12·1 answer
  • A bus accelerates at -0.5 m/s2 for 12.5 seconds . If the bus had an initial speed of 31 m/s, what is its new speed? A. 12.25m/s
    12·1 answer
  • You do 20 J of work pushing a crate up a ramp. If the output work from the inclined plane is 11 J, then what is the efficiency o
    10·1 answer
  • What is the kinetic energy of a 30 kg falling object when the object reaches a velocity of 20 m/s?
    7·1 answer
  • What is the momentum of a 0.1-kg mass moving with a speed of 5 m/s?
    12·1 answer
  • How to make my rabbit bark​
    8·2 answers
  • What happened in the gray zone between solid and liquid​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!