Recent content by gigglin_horse

Ahhh, ok. I think I have it now. Thank you for all your help :)

Ok, so now I have calculated M, I, y, and σ, but I still can't find E without R. Am I correct? I'm not so good with integration to find R. Is there another way to find E?

Sorry of this seems stupid of me, but, we took several data points, recording the load and the deflection due to that load. So, when the Force comes up in an equation, do I just take ANY load point and the corresponding deflection?

This image is what our situation looked like: http://www.physics.unc.edu/~aold/APPL150/MaterialsProject_files/image002.jpg I have a moment diagram for the bending, which is also shown in the figure above. The area-moment method, I do not know, but I'm assuming the double integration method is...

Well, our experiment didn't. How does this effect my calculations?

There were 2 supporting the bottom, and 2 applying force at the top.

Are you indicating a linear relationship? Force/displacement for all data points doesn't give a constant relationship. Am I meant to average this? Am I in the right direction??

I have a force vs displacement graph of an I-beam that is supported by 2 pin joints, and 2 equal forces on top causing it to bend. I am required to find the Elastic modulus of the beam. How do I do this? Am I using the equation: E/R = σ/y = M/I, or turning the displacement into strain? I...

Homework Statement "A stone is thrown vertically upwards from the top of a building 29 metres high at an initial speed of 11 metres/sec. How long (in seconds) will it take the stone to hit the ground? The height at any time is given by s = 29 + 11*t – 4.9*t2. Give your answer correct to...

I understand so far, but I don't understand the available energy. Efficiency = T(hot)-T(cold)/T(hot) ...right? What is the available energy?I tried (1.5x10^8)-(10^8)/(1.5x10^8)=0.333333 Am I headed in the right direction?

Homework Statement "A power station with an efficiency of 0.4 generates 10^8W of electric power and dissipates 1.5*10^8W of thermal energy to the cooling water that flows through it. Knowing that the specific heat of water in SI units is 4184J/KgºC, calculate how many Kgs of water flows...

Homework Statement "When a jet plane is cruising at high altitude, the flight attendants have more of a hill to climb as they walk forward along the aisle when the plane is cruising at low altitude. Why does the pilot have to fly with a great angle of attack at high altitude than at low...

Homework Statement "Can a satellite maintain an orbit in the plane of the arctic circle? why or why not?" Homework Equations The Attempt at a Solution My guess: No...but I don't know why...

That doesn't help... thanks though

Homework Statement I thought this would be an easy question for me, but I can't figure it out. "What is the tangential speed of a passenger on a Ferris wheel that has a radius of 10 meters and rotates once every 30 seconds?" Homework Equations Tangential speed = rotational speed x...