Thank you for the welcome!
Well, I know that F1/A1 = F2/A2...correct? But I suppose that would not hold true for velocity, now that I think about it! I'm completely confused. :(
Homework Statement
A 1 meter long hose of 8 cm diameter is conneted to a faucet. The end of this hose is connected to a second hose which is 4 meters long and 4 cm in diameter. At the open end of the second hose water flows out at a rate of 8 cm cubed/s.
What is the ratio of the speed of...
I completed the first part correctly, but I can't seem to understand how to convert the units properly. :(
At first, I converted rev/min to rad/s and got 44.67pi rad/s. After plugging this into the work equation, however, I got the wrong answer.
Since the answer is supposed to use units of...
:( Wow, okay, I even managed to find the wrong equation for Part One.
I was writing the equation for torque...which is "I" times the angular acceleration.
Could you maybe clarify why energy dissipated is equal to the work done by the brake? I see now that I have really missed entire...
I found I = (1/4)(m)(R squared), so would this be I = (1/4)(127 kg) (0.725 m /2)^2 ? I am wary of using this equation, as it does not in any way utilize 1340 rev/min.
Do you mean W=ΔK=(1/2)Iω(final)^2−(1/2)Iω(initial)^2? I understand how to use this for Part Two, but Part Three seems to...
Homework Statement
Part One:
A flywheel in the form of a heavy circular disk of diameter 0.725 m and mass 127 kg is mounted on a frictionless bearing. A motor connected to the flywheel accelerates it from rest to 1340 rev/min. What is the moment of inertia of the flywheel? Answer in units...