Answer:
Explanation:
Given that,
The temperature of atom is 21°C
θ = 21 + 273 = 294K.
Then, from kinetic theory,
The kinetic energy of individual elements is
K.E = 2kT/3
k is Boltzmann constant
k = 1.38 × 10^-23 J/K•particle
Then,
K.E = 2 × 1.38 × 10^-23 × 294 / 3
K.E = 2.7048 × 10^-21 J/particle
Each particle of hydrogen is 5.64 × 10²¹ particle
Total K.E = 2.7048 × 10^-21 × 5.64 × 10²¹
Total K.E = 15.26 J
Force = 8.0 k g m / s
Force = mass x acceleration
Mass = 4.0 k g Acceleration = 2.0 m / s 2
Hence,force = ( 4.0 x 2.0 ) k g m / s 2 = 8.0 k g m / s 2
Hiya!
The answer to your question is B.
Physical Properties.
~Hope this helps~
it will be 1/√2 of its original period.
