If the kinetic energy and mass and known, the velocity would be;
v=√2k/m (square root of 2 times the kinetic energy divided by the mass).
Answer:
12s
Explanation:
the formula is
s = u×t + 0.5×a×t²
where:
s is the displacement of the object at this time (so it's equal to 0)
u is the initial speed
t is the time you have to find
a is the acceleration due to gravity
Answer:
Under Nuclear Fission you need to put: splits nucleus and produces two lighter atoms. Then, under Nuclear Fusion put: produces a heavier atom and combines two atoms. lastly, under both put: releases energy. I hope that helped!
Explanation:
Pressure and volume of an ideal gas undergoing a revisable adiabatic change of state are related as[1]:
<span>P∙V^γ = C ( a constant ) </span>
<span>
When you substitute pressure using ideal gas law you can derive a relation for temperature and volume for such process: </span>
<span>P = n∙R∙T/V </span>
<span>=> </span>
<span>(n∙R∙T/V)∙V^γ = C </span>
<span><=> </span>
<span>T∙V^(γ - 1) = C/(n∙R∙) (also a constant) </span>
<span>So volume and temperature in initial (1) and final (2) state are related as: </span>
<span>T₁∙V₁^(γ - 1) = T₂∙V₂^(γ - 1) </span>
<span><=> </span>
<span>T₁^(1/(γ - 1))∙V₁ = T₂^(1/(^(γ - 1))∙V₂ </span>
<span>
So final volume is given by: </span>
<span>V₂ = V₁ ∙ (T₁/T₂∙)^(1/(γ - 1)) </span>
<span>The temperatures are given. The initial volume can be found from ideal gas law: </span>
<span>V₁ = n∙R∙T₁∙/P₁ </span>
<span>= 20mol ∙ 8.314 J∙mol⁻¹∙K⁻¹ ∙ 450K / 400×10³ Pa </span>
<span>= 0.187 m³ </span>
<span>= 187 L </span>
<span>Hence, </span>
<span>V₂ = 187L ∙ (450K / 320∙)^(1/(1.67 - 1)) = 311 L ≈ 310 L
Hope this helps :)
</span>
Your answer would be B) Chemistry because in chemistry it describes the study of matter and how materials interact with each other at atomic level.
So, your answer is, B) Chemistry
Hope I helped ya!! xD