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pogonyaev
2 years ago
7

Speed-48km time-5hour​

Chemistry
1 answer:
Rom4ik [11]2 years ago
7 0

Answer:

Whats the question?

Explanation:

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A runner travels at a constant speed of 4 m/s. What happens to the velocity of the runner when the runner changes direction?
ANTONII [103]

Answer:

4m/s in the direction of the turn

Explanation:

The velocity of an object is the rate of change of its position with respect to a frame of reference.

Assuming the runner stays the same speed as he turns, his velocity will be 4m/s in the speed he turns.

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2 years ago
While working in the lab, you observe the following volume.
MakcuM [25]

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B 18.4L

Explanation:

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A large weather balloon filled with helium has a volume of 7.00 x 102 L at STP. Which expression should be used to find the mass
balandron [24]

Answer:

mass of Helium = mole of Helium x Molarmass of Helium

Explanation:

Mole of Helium = volume of Helium/ 22.4dm^3/mol

                          = 7.00 x 10^2/22.4

                          = 31.25mol

Mass of Helium = mole of Helium x Molarmass of Helium

                           = 31.25mol x 4g/mol

                           = 125g

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3 years ago
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Dahasolnce [82]
Lower the pH because increased number of free hydrogen ions
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Vesnalui [34]
I got D for an answer
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