# Recent content by NathanLeduc1

1. ### Thermodynamics - Calculate power and dimensions of piping

Homework Statement 500 kg/hr of steam drives a turbine. The steam enters the turbine at 60 bara and 500C at a linear velocity of 5.0 m/s. After driving a set of turbine wheels to generate shaft power, the steam exhausts from a pipe that is 10 m below the entrance pipe at 35.0 m/s and at 2.5...
2. ### Calculating the mass of the wheel on a pendulum on a watch

Oh my goodness... I just realized why you were asking me that. Wow, I am dumb. Man, those stupid mistakes get me every time. Thanks for the help.

pi/4
4. ### Calculating the mass of the wheel on a pendulum on a watch

Yep, that's the question word for word.
5. ### Calculating the mass of the wheel on a pendulum on a watch

Homework Statement The balance wheel of a watch is a thin ring of radius 0.95 cm and oscillates with a frequency of 3.10 Hz. If a torque of 1.1x10-5 Nm causes the wheel to rotate 45°, calculate the mass of the balance wheel. Homework Equations I=mr2 T=(2π)sqrt(I/mgh) τ=-Kθ The...
6. ### Simple Harmonic Motion on a Uniform Meter Stick

Ok, so I set up a force diagram and did the following work but I'm stuck again... At equilibrium: Ʃτ=Kxol-mg(l/2)=0 After it's been stretched: Ʃτ=K(x+xo)-mg(l/2)=Iα This then simplifies to: Iα=kxol I wrote α as the second derivative of θ with respect to time but now I'm stuck...
7. ### Simple Harmonic Motion on a Uniform Meter Stick

Homework Statement A uniform meter stick of mass M is pivoted on a hinge at one end and held horizontal by a spring with spring constant k attached at the other end. If the stick oscillates up and down slightly, what is its frequency? Homework Equations τ=rFsinθ f=(1/2π)√(k/m) F=kx...
8. ### Ball rotating on axle which is rotating itself

Ah, you again. Thanks for the help! :) I wish I could show you the diagram on my paper... it demonstrates the problem a lot better. The axle itself is rotating with angular velocity ω. There might not necessarily be a ball at the end of the axle but the point at the end of the axle is...
9. ### Ball rotating on axle which is rotating itself

Homework Statement A ball of mass m is attached via a rod of length x to an axle that rotates with angular velocity ω. You can consider the ball to be a point mass. m = 5 kg, x = 0.3 m, y = 0.4 m, ω= 30 rad/s (a) What is the linear momentum (direction and magnitude) of the ball? (b) What...
10. ### Solid disk rolling

Oops, 1.25... ((5/4)(v^2))/g = h
11. ### Solid disk rolling

Ah, either you're a genius or I'm dumb. Probably both. Thank you. I got a final answer of (1.2*v^2)/g = h.
12. ### Solid disk rolling

Homework Statement A solid disk of mass m and radius R rolls without slipping with a velocity v. Assuming it doesn't slip, how far vertically will it roll up an incline? Homework Equations I=0.5mr2 E=0.5Iω2 KE=0.5mv2 PE=mgh The Attempt at a Solution I'm thinking that we need to...
13. ### PH of a solution containing a strong acid and a weak acid

Homework Statement Find the pH in 50.0 mL of 1.00M HCl + 50.0 mL of 1.00M HF Homework Equations None to speak of really... The Attempt at a Solution I figured out [HCl] and [HF] in the solution: they're both 0.5M. I have absolutely no idea what to do at this point... Thanks.
14. ### Rotational motion on pulley system

Okay, I can do that but then how do I solve for T1 and T2?
15. ### Rotational motion on pulley system

Homework Statement A string passing over a pulley has a 3.80-kg mass hanging from one end and a 3.15-kg mass hanging from the other end. The pulley is a uniform solid cylinder of radius 4.0 cm and mass 0.80 kg. If the bearings of they pulley were frictionless, what would be the acceleration...