The area under the curve of the net external force vs time graph is equal to __________ or ________.
1 answer:
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As the temperature of the lead and helium is the same. Thus the average kinetic energy is also the same for lead and helium.
Reason:
It is given that a 5.0-kg bar of lead is placed inside a 12-L chamber filled with helium gas. The temperature of the lead and helium is the same. It is required to compare the average kinetic energy of the lead atoms and helium atoms.
The average kinetic energy is calculated as, .
Here K is the average kinetic energy, R is the gas constant, N is the Avogadro's number, and T is the temperature.
As the temperature is the same for both lead and helium. As a result, the average kinetic energy is also the same for lead and helium.
Learn more about average kinetic energy here,
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Answer:
the one with a higher mass
Explanation:
The body with more mass will have the greater kinetic energy of the two.
Kinetic energy is the energy due to the motion of body. It is mathematically expressed as:
K.E = m v²
m is the mass
v is the velocity
Since the velocity of the two bodies are the same, and mass is directly proportional to kinetic energy, the body with more mass will have a higher kinetic energy.
So between mass m1 and mass m2, the one with a greater mass will have a higher kinetic energy