A 4 kg kitten is sliding at 12 m/s on a horizontal frictionless surface. A constant force is applied that slows it with an accel
1 answer:
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To develop the problem it is necessary to apply two concepts, the first is related to the calculation of average data and the second is the Boltzmann distribution.
Boltzmann distribution is a probability distribution or probability measure that gives the probability that a system will be in a certain state as a function of that state's energy and the temperature of the system. It is given by
Where,
energy of that state
k = Boltzmann's constant
T = Temperature
With our values we have that
T= 250K
To make the calculations easier we can assume that the temperature and Boltzmann constant can be summarized as
Therefore the average energy would be,
Replacing with our values we have
Therefore the average internal energy is
Answer:
Therefore the resistance of the conductor is 175Ω
Explanation:
Resistance:
- Resistance of a metallic conductor is directly proportional to its length(l).
- Resistance of a metallic conductor is inversely proportional to its cross section area(A).
The notation sign of resistance is R.
The unit of resistance is ohm (Ω).
Therefore,
and
ρ is the proportional constant.
It is also known as resistivity of that metal.
Given ρ=35×10⁻⁶Ω-m
l= 20 m
A= 4.0×10⁻⁶m²
=175Ω
Therefore the resistance of the conductor is 175Ω