Recent content by CursedAntagonis

Homework Statement The switch in the following circuit has been opened for a very long time and then closes at t=0 (a) Calculate Vc(t) for t>0. (b) Calculate i(t) for t>0. Homework Equations The Attempt at a Solution Here is my attempt of the problem. I have not dealt with a...

Homework Statement I have been trying to learn how to use linear interpolation to find out the data needed from the thermodynamics chart, however, the book that is assigned does not even talk about it. Could someone please explain how linear interpolation is used? Thanks

the answer is actually 0.1457 m/s.

Homework Statement Trying to solve for K: ln(1-4k)=-6k Homework Equations The Attempt at a Solution I know that need to take the e of both side, to get 1-4k=e^-6k, but I cannot remember any properties of e to allow me to remove the k from the exponent. Any tips is appreciated.

Homework Statement Doing my vector mechanics dynamics homework and I cannot believe I am stuck on this part. trying to factor t^3 - 6t^2-36t - 40 = 0 Homework Equations The Attempt at a Solution I honestly do not remember where to begin. I remember there is a formula for perfect...

So here is what I have got so far: F=(\mus)N N=mg F=(\mus)(m)(g) ma=(\mus)(m)(g) the mass cancels out and thus a=(\mus)(g) a=(0.40)(32.2ft/s^2) a=12.88 ft/s^2 Converting the 45 mi/h gives us 66 ft/s, and using the acceleration found in the equation V^2=Vo^2+2a(X-Xo): 0=(66ft/s)^2+2(12.88...

Thanks. When I find the solution, would you mind double checking my work? I will post my work.

I am guessing that would be static friction since the box is to stand still while the truck is to slow down and stop. So if I to use the coefficient of static friction to find the acceleration, and use that acceleration to find the distance it takes for the truck to stop that would be the...

Homework Statement The coefficients of friction between the load and the flat-bed trailer shown are \mus = 0.40 and \muk = 0.30. Knowing that the speed of the rig is 45 mi/h, determine the shortest distance in which the rig can be brough to a stop if the load is not to shift. The drawing...

No one knows the answer or can lend me a hand with this?

Homework Statement A large box containing your new computer sits on the bed of your pickup truck. You are stopped at a red light. The light turns green and you stomp on the gas and the truck accelerates. To your horror, the box starts to slide toward the back of the truck. (Assume that the...

Here you go, I resized it. Sorry about that. Ok so how does this look? Vcw = Vce + Vwe which when numbers plugged in gives me 20 = Vce + 10. I ended up getting Vce = 17.3 m/h is that correct? Vhe = Vha + Vae which when numbers plugged in gives me Vhe = 40 + 30. I ended up getting Vhe = 50...

Homework Statement The Attempt at a Solution Vch = Vce + Vhe Do I have this correct? I am guessing I need to find the velocity of the carrier with the respect to earth, and also find the velocity of the helicopter with respect to earth. Than with these two answers I can find...

Yes yes, I put that negative in the original equation as I was expecting the 15 to be negative. I guess that's how I ended up confusing you and myself =P so the horizontal velocity of the ball relative to the observer is 5 m/s? That's what we found I hope lol. The next question is With...

Ok so would it be this? Vbe = 20 + 15 so the velocity relative to the observer is going to be 35 m/s? How come it's adding it and not subtracting it? I was assuming it would have to be 5 m/s. I'm sorry I'm a bit slow with questions like these.