Answer:
V = 1.35 m/s
Explanation:
Given that,
Mass of a railroad car, m₁ = 25,000 kg
Initial speed of a railroad car, u₁ = 4.5 m/s
Initial speed of railroad car that is full of coal, u₂ = 0 (at rest)
We need to find the final velocity of the two railroad cars if they move as one after the collision. It is a case of inelastic collision in which the momentum remains conserved. Using the conservation of linear momentum as follows :
![m_1u_1+m_2u_2=(m_1+m_2)V](https://tex.z-dn.net/?f=m_1u_1%2Bm_2u_2%3D%28m_1%2Bm_2%29V)
V is the final speed and u₂ = 0
![V=\dfrac{m_1u_1}{m_1+m_2}\\\\V=\dfrac{25000\times 4.5}{25000+58000}\\\\V=1.35\ m/s](https://tex.z-dn.net/?f=V%3D%5Cdfrac%7Bm_1u_1%7D%7Bm_1%2Bm_2%7D%5C%5C%5C%5CV%3D%5Cdfrac%7B25000%5Ctimes%204.5%7D%7B25000%2B58000%7D%5C%5C%5C%5CV%3D1.35%5C%20m%2Fs)
So, the final velocity of the two railroad cars is 1.35 m/s.
Answer:
The main difference between distillation and fractional distillation are:Simple distillation separate liquid with boiling point gaps of at least 50 degrees whereas fractional distillation separates liquid with closer boiling point.
Explanation:
<h2>hope it helps</h2>
Michigan v. Tyler was the Supreme court ruling that they violated when
warrantless search was done.
<h3>Michigan v. Tyler case</h3>
The Court of Appeals of the State of Michigan affirmed the conviction for the
exception of a warrantless search only in the case of an arson.
In this case, there was no arson involved which is against the rule of law as
various items (stolen money, illegal weapons, drugs) were only searched for.
This thereby violates the U.S. Supreme Court ruling between Michigan v.
Tyler.
Read more about Michigan v. Tyler case here brainly.com/question/1622038
First let us compute for the number of moles of butane
(molar mass = 58.12 g/mol)
number of moles = 145 g / (58.12 g/mol) = 2.49 mol
<span>We use the ideal
gas equation to calculate the volume:</span>
<span> V = n R T / P</span>
V = 2.49 mol * 62.36367 L torr / mol K * 308.15 K / 745
torr
<span>V = 64.35 L</span>