Recent content by hot2moli

The period of the leg can be approximated by treating the leg as a physical pendulum, with a period of , where I is the moment of inertia, m is the mass, and h is the distance from the pivot point to the center of mass. The leg can be considered to be a right cylinder of constant density. For a...

Yes I understand but since its 1:1 you can just multiply it by 1mol correct? Then it's 12.01g and 1.01g?? Which is my method of solving but evidently incorrect... therefore how do you find the masses?

I already got part A --> 42.9 rad Displacement = S/r But then I get lost in the equations for the rest. I understand T - mg = ma and Torque I believe is = Tension= (1/2)Ma is that correct? and then I can solve for a by substituting the 2 equations

and then would velocity just be: 2(2pi/T) = Vmax

so I can disregard sine/cos since it would just be -1/1... therefore I only focus on the bginning of the equation a=–(2pi/T)^2(Xo) And i would just plug in getting 1.3m/s2 but that is incorrect..

Calculate the approximate frequency of the C-H bond, with the force constant of k = 500 N/m. Use: Frequency = (1/2pi) Sqrt(k/((m1m2)/(m1 m2))) BUTT WHAT DO I USE FOR MY MASS VALUES?? I tried, 12.011g/mol and 1.01g/mol and that is incorrect.

x=xocos(2pi t/T), where xo is the maximum amplitude of oscillation and T is the period of oscillation. Find expressions for the velocity and acceleration of a car undergoing simple harmonic motion by differentiating x. [Answer: a=–(2pi/T)^2(Xo)cos(2pi t/T).] QUESTION: If xo = 0.3 m and T...

torque = -T = 1/2Ma is that right? but is that M different than the m in T-mg = ma?

I'm sorry.. I still am not understanding...25atm wouldn't be the actual than either, but can't you make them proportional still because it's the same system?...and even if it's not the actual P, wouldn't you just add 1atm to it to account for air pressure?

so I did P/n = P2/n2 and I am not getting the right answer. P= 41atm n= (15000g)/(16g/mol) P2= 28 and then I solve for n2 multiplying by 16g/mol to get mass of oxygen? WHERE I HAVE I GONE WRONG? :( PLEASE HELP!

The pressure gauge on a tank registers the gauge pressure, which is the difference between the interior and exterior pressure. When the tank is full of oxygen (O2), it contains 15.0 kg of the gas at a gauge pressure of 41.0 atm. Determine the mass of oxygen that has been withdrawn from the tank...

How do I find Tension.. assuming I can solve for acceleration using T-mg = ma?

Assume that the Titanic is drifting in Southampton harbor before its fateful journey and the captain wishes to stop the drift by dropping an anchor. The iron anchor has a mass 1000 kg. It is attached to a massless rope. The rope is wrapped around a reel in the form of a solid disk of radius...