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Anit [1.1K]
3 years ago
14

When hot and cold air meet, the hot air rises to the top. Which process causes the hot air to rise?

Physics
2 answers:
sweet-ann [11.9K]3 years ago
5 0
I took this test before, aren't there answer choices? :)
Brilliant_brown [7]3 years ago
5 0

Answer:

The process that causes the hot air to rise is convention. :)

Explanation:

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A train going 14m/s moves 250 m while accelerating to a stop. What is the train’s deceleration?
Elanso [62]

Answer:

-0.056 is the deceleration

6 0
3 years ago
Help please
pav-90 [236]

Air is a mixture.

as per definition, mixture is a combination we get after adding two or more things together in any proportion.

air is a mixture because it contains a number of gases like nitrogen , oxygen, carbon dioxide. it also contains dust particles, small organisms, water vapors etc.

carbon monoxide is not a mixture as it is formed from fixed proportion of carbon and oxygen.

similarly, water is is not a mixture as it is formed from fixed proportion of hydrogen and oxygen.

8 0
3 years ago
Read 2 more answers
Genetically-Modified Organisms (GMOs) are currently being developed for agriculture. Currently commercialized GM crops in the U.
kirza4 [7]
D. There's not enough research surrounding it. A big question is if they have side effects due to genetic modification that we don't know of.

(Not sure if you had D eliminated or? But it should be the correct answer)
5 0
3 years ago
If two balls have the same volume,
Lena [83]

Here, we are required to find the relationship between balls of different mass(a measure of weight) and different volumes.

  • 1. Ball A will have the greater density
  • 2. Ball C and Ball D have the same density.
  • 3. Ball Q will have the greater density.
  • 4. Ball X and Y will have the same density

The density of an object is given as its mass per unit volume of the object.

Mathematically;.

  • Density = Mass/Volume.

For Case 1:

  • Va = Vb and Ma = 2Mb
  • D(b) = (Mb)/(Vb) and D(a) = 2(Mb)/Vb
  • Therefore, the density of ball A,
  • D(a) = 2D(b).
  • Therefore, ball A has the greater density.

For Case 2:

  • Vc = 3Vd,

  • Vd = (1/3)Vc

  • Md = (1/3)Mc

  • D(c) = (Mc)/(Vc) and D(d) = (1/3)Md/(1/3)Vd

  • D(c) = D(d).

  • Therefore, ball C and D have the same density

For Case 3:

  • Vp = 2Vq and Mp = Mq
  • D(p) = (Mq)/2(Vq) and D(q) = (Mq)/Vq
  • Therefore, the density of ball P is half the density of ball Q
  • Therefore, ball Q has the greater density.

For case 4:

  • Mx = (1/2)My
  • Vx = Vy

Therefore, Ball X and Ball Y have the same density.

Read more:

brainly.com/question/18110802

8 0
3 years ago
Find the distance (P1, P2) between the points P, and P2:
MA_775_DIABLO [31]

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the concept of distance formula.

Distance formula ==>

\sqrt{( {x2 - x1})^{2}  + ( {y2 - y1})^{2} }

so applying this we get as,

D = underoot (9)^2 + (-5)^2

==> D = 10.29 units

distance = 10.29 units

6 0
3 years ago
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