Recent content by MattNguyen

Homework Statement [SIZE=13px][FONT=Helvetica Neue]Initially you have mW = 4.6 kg of water at TW = 74°C in an insulated container. You add ice at TI = -19°C to the container and the mix reaches a final, equilibrium temperature of Tf = 33°C. The specific heats of ice and water are cI = 2.10×103...

[SIZE=16px][FONT=times]Now I have this 2 a D[FONT=times]e[SIZE=16px][FONT=times] ( Exp ( - 2 a ( r - r[FONT=times]e[SIZE=16px][FONT=times] ) ) - Exp ( - a ( r -[SIZE=16px][FONT=times]|[SIZE=16px][FONT=times] r[FONT=times]e[SIZE=16px][FONT=times] ) ) ) and I inputted it and it says there's a...

Which sign? I entered it into my online homework and it was wrong so that's why I'm asking.

Yeah, that's what I meant. The first spring is stretched, though, so I'm assuming it has potential energy.

Homework Statement A crate of mass m = 0.29 kg is set against a spring with a spring constant of k1 = 581 N/m which has been compressed by a distance of 0.1 m. Some distance in front of it, along a frictionless surface, is another spring with a spring constant of k2 = 246 N/m. (a) How far, d2...

Homework Statement The binding potential energy in a diatomic molecule (N2 for example) is often approximated by the Morse potential energy which has the form U(r) = De (1-e^[-a(r-re)])2 where De is a constant that reflects the well depth (dissociation energy), a is a constant that reflects the...