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Zanzabum
3 years ago
15

Name three gases in the atmosphere

Physics
2 answers:
igomit [66]3 years ago
6 0
Oxygen
Nitrogen
Carbon Dioxide   (: 
4vir4ik [10]3 years ago
5 0
Nitrogen, argon, oxygen 

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Aristotle said that a moving earthly or `mundane' object with nothing pushing or pulling on it will always A slow down and stop.
andrew11 [14]

Answer:

A slow down and stop

Explanation:

When there is no force acting on something it automatically begins to slow down and then stops.Essentially, Aristotle's perspective of motion is that "it requires a force to move an object in an unnatural" way— or, plainly, that "movement involves strength." Indeed, if you propel a book, it keeps moving. Once you stop trying to push, it comes to a stop.

5 0
3 years ago
Friction is defined as *
den301095 [7]

Answer:

O a force that opposes motion

5 0
3 years ago
A sand core used to form the internal surfaces of a steel casting experiences a buoyancy force of 225 n. the volume of the mold
pashok25 [27]

Newton’s second law gives us the relationship of force F, mass m and acceleration a. The formula is given as:

<span>F = m a                  --> 1</span>

However we also know that the relationship of mass m, density ρ, and volume V is:

<span>m = V ρ                 --> 2</span>

Therefore substituting equation 2 to equation 1:

F = ρ V a = ρ V g

where a is acceleration due to gravity, ρ is density of water and V is the volume of the casting, therefore:

F = (1x10^-3 kg/cm^3) (4840 cm^3) (9.8 m/s^2)

F = 47.432 kg m/s^2

F = 47.432 N

 

Going back to equation 1:

47.432 N = m (9.8 m/s^2)

m = 4.84 kg

 

<span>Hence the weight of the final casting is 4.84 kg</span>

5 0
3 years ago
Acceleration of a Car A car traveling along a straight road at accelerated to a speed of over a distance of ft. What was the acc
kicyunya [14]

Answer:

how many feet?

Explanation:

6 0
2 years ago
Which is true about a convex mirror?
kakasveta [241]

Answer:

The answer is

A. Incident rays that are parallel to the central axis are dispersed but will be perceived as originating from a point on the near side of the mirror.

Explanation:

The images formed by a convex mirror is virtual, diminished and images are always formed between the Focal point and the pole of the mirror.

Convex mirrors are used as car driving mirrors because they form upright images and also give wider field of view (dispersed) , and notice that in the car driving mirrors there is a warning "objects appear closer than they are "

Which explains our answer, that images are perceived from a near side

8 0
3 years ago
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