Recent content by jessedevin

Homework Statement For a protein denaturation the entropy change is 2.31J/Kmol at P = 1.00 atm and at the melting temperature T=338K. Calculate the melting temperature at a pressure of P= 1.00x10^3 atm if the heat capacity ∆Cp,m= 7.98J/Kmol and if ∆Vm=3.10mL/mol. Homework Equations...

Homework Statement A refrigerator is operated by a 0.25 hp (1 hp=746 watts) motor. If the interior is to be maintained at 2.00 degrees Celsius and the room temperature of the room is 35 degrees C, what is the maximum heat leak in watts that can be tolerated? Assume that the coefficient of...

thanks

Homework Statement In the circuit of Figure P28.28, determine the current in each resistor and the potential difference across the 200-ohm resistor. Homework Equations Kirchoff's Rules V=IR The Attempt at a Solution The way I did it was like this: I set up a system of...

Hey guys. Can someone show me the mechanism for Aspartame to methanol?

why?

2.62 x 10^24 e-/10^9 e-=2.62 x 10^15

6.25 x 10^24 e-... so what do I do with that?

Homework Statement (a). Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b). Imagine adding electrons to the pin until the negative charge has the very large value of...

Homework Statement In the equation describing the superposition of the two waves to obtain a standing wave, which term represents the wave propagating to the left? Homework Equations Y(x,t) = Asin2\pi(t/T - x/\lambda) + Asin2\pi(t/T +x/\lambda) The Attempt at a Solution I think its...

How do you prove if a vector field is conservative or if it isn't conservative? For example, if we have the vector field F(x, y, z) = x^2yz ı + y  + x^2 k, how do we find out if it is conservative or not conservative?

So do you take the magnitude of that? I am still confused, because my book says otherwise. Can you go through your process?

Homework Statement Three objects -- two of mass m and one of mass M -- are located at three corners of a square of edge length l. Find the gravitational field g at the fourth corner due to these objects. (Express your answers in terms of the edge length l, the masses m and M, and the...

So let me see if I got this straight m1= \sigma\piR2 m2=\sigma\piR2/4 x1=0 x2=-R/2 Sooo... XCG = (m1 x1 - m2 x2) / (m1 - m2) XCG = -(\sigma\piR2/4*-R/2)/(\sigma\piR2-\sigma\piR2/4) R/6=(R3/8)/(R2-R2/4) R/6=(R/8)/(3/4) R/6=R/6 Thanks So much!

okay, so for m1, the radius is R, where in m2, the radius is R/2, which is stated in the problem. So for m1, the area is \pi* R2 For m2, the are is \pi* (R/2)2=\pi* R2/4 Sorry the pi's look so weird, that's just how they turned out. The center of the cut out disk is R/2. So what next?