How does the motion of objects with similar mass compare to objects of different mass?

Chemistry

1 answer:

emmasim [6.3K]2 years ago

7 0

Explanation:

in fact , we can use newtons second law of motion (see the SPT: Force topic) to calculate the acceleration in each of these cases

in fact , we can use newtons second law of motion (see the SPT: Force topic) to calculate the acceleration in each of these caseshope it helps you like me plz

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How many moles of Cu in 7.81 * 10^21 atoms of Cu

ICE Princess25 [194]

Use avogadro's number---> 6.02 x 10^23 atoms= 1 mol

7.81 x 10^21 (1 mole/ 6.02 x 10^23)= 0.0130 moles of Cu

8 0

3 years ago

Which is true with respect to the kinetic energy of a molecule?

Elis [28]

Answer:

A. it is the lowest at low temperatures

Explanation:

At low temperature the kinetic energy of a molecule is low. The kinetic energy is directly proportional to the temperature of the molecule. The kinetic energy of a molecule increases with the increase in the temperature that energize the molecules of a substance and makes them to move faster than before.

As the kinetic energy is proportional to temperature so it does not increase with decrease in the temperature (low temperature). The kinetic energy varies with the change in the temperature and it is not same at all temperature. The kinetic energy is highest at high temperature. Thus, option A is correct.