Recent content by lunarskull

Hi, I am in Mechanics of materials class, and I am attempting to design a cantilever beam that meets certain specifications for atomic Force microscopy. (details aren't relevant for programming steps). I have been tasked with writing a script in MATLAB that: A.) Calculates the...

thank you for the help, i eventually figured it out because you gave me the general basis that i needed to understand how to answer the problem

The problem is defined below: The electric field on the surface of an irregularly shaped conductor varies from 56 kn/c to 28 kn/c. calculate the local surface charge density at the point on the surface where the radius of curvature of the surface is (a) greatest and (b) smallest. Attempt...

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...

n came out to be 35.098 mol which i multiplied by .0289 kg/mol to get the mass in kg. How would i calculate the new volume though?

Thanks a lot for the help, i figured out the answer to part b of this question along with parts (a) and (c). I am stuck on part (d) now though... The questions and answers to the respective problems are listed below: (a) Find the specific heat of air at constant volume in units of...

I am not sure I do, maybe I could figure out how many moles are in 1 liter? Otherwise, I suppose I could calculate the specific heat into kj/kg*K to get the kg units, but I am not sure that would help all that much.

A vertical cylinder with a heavy piston contains air at a temperature of 300 K. The initial pressure is 250 kPa and the initial volume is 0.350 m^3. Take the molar mass of air as 28.9 g/mol and assume that CV = 5R / 2. (b) Calculate the mass of the air in the cylinder. I know I have to use the...

for question 6 sum the torques and let me know what you get. this is the only one I am sure of how to do

pm me if by any chance you get these solutions in the mean time, could you pm them to me? thanks:biggrin:

actually anyone got these solutions? it would be beneficial to me if anyone who has the 1995 free response solutions would be able to send them to me at lunarskull@yahoo.com. thanks in advance:biggrin: asap please. haha like tomorrow morning :D

oohh antiderivative any chance you could also send me the free reponse questions and solutions from 1995-1997? this would be useful as the collegboard doesn't have them anymore

just edited first post. i guess maybe I=(2/5)Mr^2 might come in handy?

An airplane of mass 12000kg flies level to the ground at an altitude of 10. km with a constant speed of 175 m/s relative to the earth. (a) what is the magnitude of the airplane's angular momentum relative to a ground observer directly below the airplane? (b) Does this value change as the...

how? how do you incorporate the numbers into conservation of energy?