The temperature of a gas is directly related to the kinetic energy of the gas particles. Determine which actions below will have
2 answers:
Answer:The correct answer is option is B.
Explanation:
The kinetic energy of the gas molecule:
The temperature of a gas is directly proportional to kinetic energy of the gas particles.
According to question actions which will have no effect on the kinetic energy of gas particles ; poking a hole in a tire and adding more air to the a balloon will not effect the temperature of the gas molecule.
Where as action will result in change of the temperature of the gas particles which will change the kinetic energy of the gas particles.
So, action (I) and( III) will not the effect the kinetic energy of the gas particles. Hence,the correct answer is option is B.
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Answer:
F=2627.6N
Explanation:
The work done by this resistive force while traveling a distance <em>d</em> underwater would be:
where the minus sign appears because the force is upwards and the displacement downwards.
This work is equal to the change of mechanical energy. At the diving plataform and underwater, when she stops moving, the woman has no kinetic energy, so all can be written in terms of her total change of gravitational potential energy:
Putting all together:
Answer:
The new distance is d = 0.447 d₀
Explanation:
The electric out is given by Coulomb's Law
F = k q₁ q₂ / r²
This electric force is in balance with tension.
We reduce the charge of sphere B to 1/5 of its initial value (=q₂ = q₂ / 5) than new distance (d = n d₀)
dat
q₁ =
q₂ =
r = d₀
In order for the deviation to maintain the electric force it should not change, so we apply the Coulomb equation for the two points
F = k q₁ q₂ / d₀²
F = k q₁ (q₂ / 5) / (n d₀)²
.k q₁ q₂ / d₀² = q₁ q₂ / (5 n² d₀²)
5 n² = 1
n = √ 1/5
n = 0.447
The new distance is
d = 0.447 d₀