Hi everyone, i have a question abuot how my professor is using the pressure variation equation and I would really appreciate help with it!
Homework Statement
How high can you suck water up a strw? The pressure in the lungs can be reduced to about 10 kPa below atmospheric pressure
2...
Hi Guys so I would really appreciate if I could get some help with this question I have, I have a test in a couple days!
So we are learning about torque and there are a couple components of torque that I'm a bit confused about.
1. Is the axis of rotation a line or just a point?
2. Is...
Hi everyone. I would really appreciate if I could get some help with this problem elastic collision problem. I will provide the question and the solution as shown in my textbook. What I would like to know if specifically how they used the equation, V2ix-V1ix = -(V2fx-V1fx), and why they arranged...
Oh I see I see, my algebra isn't the best lol. And also why is there a velocity at the top of the loop? I thought at the top of the loop there is greatest potential energy so no change in kinetic energy. Is it because the total potential energy is actually at a height of 40 m not 20 m?
There...
Thank you very much for writing it out so clearly. Okay so the total conservation of energy in the system is the same. So if I were to solve the problem with the Ki + Ui = Kf + Uf method it would look like:
Ki + Ui = Kf + Uf --> 0 + mg(40) = 1/2mv^2 + mg920) --> mg(40)-mg(20) = 1/2mv^2 --> v...
Thank you so much for explaining that to me!
So why would they amount of energy at the top of the hill be the same as the amount of energy in the loop with a different height?
And are there specific types of problems/situations in which one would use one equation over the other? I believe i...
Gravitation Potential Energy Problem pls help!
I would greatly appreciate help on a couple questions I have. I have been sic for the past few days and unable to go into school to ask my TA's questions. My first question is when should use the equation Ki + Ui = Kf + Uf or Kf -Ki = Uf - Ui ? I...