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Pavlova-9 [17]
3 years ago
12

A cheetah can go from a state of resting to running at 20 m/s in just two seconds. What is the cheetah's average acceleration?

Chemistry
1 answer:
soldier1979 [14.2K]3 years ago
8 0

Answer:

D is answer ..... !!!!!!!!.......!!!!!!#.#.....

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Why is atmospheric pressure much lower on the top of a mountain than it is as sea level?
Vika [28.1K]
Because the gravity levels decrese and so does the oxygen levels

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3 years ago
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A balloon has a volume of 6.2 liters at 23.2 C. The balloon is then heated to a temperature of 144.0 C. What is the volume of th
Marina CMI [18]

Answer:

8.7 L

Explanation:

T2(V1/T1) = V2

417.15 K(6.2 L/296.45 K) = 8.7 L

Remember to almost always change celcius to kelvin. Also, this is part of Charle's Law (temp and volume are proportional, so if temp increaces so must the volume or vice versa). Lastly, Charle's Law has the formula of V1/T1 = V2/T2. I just rearranged it to go along with your problem. Hence, the T2(V1/T1) = V2

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3 years ago
Which answer provides the correct name for the following hydrocarbon?
ivanzaharov [21]
1) Hydrocarbon: CH3 - CH2 - CH2 - CH2 - CH3

2) Only single bonds => alkane => sufix ane

3) no substitutions

4) 5 carbons = > prefix penta.

Therefore, the name is pentane.
4 0
3 years ago
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How does matter change phase?
crimeas [40]

Answer:

Phase changes typically occur when the temperature or pressure of a system is altered. When temperature or pressure increases, molecules interact more with each other. When pressure increases or temperature decreases, it's easier for atoms and molecules to settle into a more rigid structure.

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Hope it helps UvU

7 0
2 years ago
PLS HELP ME I HAVE TILL 12
MariettaO [177]

Answer:

alright bud lets see hmm.... the answer is a. 90.5kpa

Explanation:

92.3 kPa - 1.82 kPa = 90.5 kPa

keep up your hope also corrected me if a am wrong in anyway! :)

3 0
3 years ago
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