Recent content by k-rod AP 2010

Homework Statement A solid cylinder w/ mass m, radius r, and rotational inertia 1/25mr2 rolls without slipping down an inclined plane. THe cylinder starts form rest at height h. The inclined plane makes an angle θ w/ the horizontal.Determine the translational speed of the cylinder when it...

ok that's what i was thinking, thanks again for all your help with this problem

for questions 1-5, plug in the time given to for t then use those numbers to complete the problem. to find equations for velocity and acceleration, you must differentiate the position function. ex. x(t)=d(1+2t+4t^2) --> v(t)=8t+2 then v(t)=d(8t+2) --> a(t)=8 position...

ok, that's what i thought thanks for the help. and another question pertaining to this hw,... if the orbital speed were mistakingly made slower than needed the orbit would be smaller than desired, and if it were faster than needed the orbit would be larger and more elliptical than wanted right?

Homework Statement An explorer plans a mission to place a satellite into a circular orbit around Jupiter, the radius of the planned orbit would be R. a)The explorer wants the satellite to be sychronized w/ Jupiter's rotation. Determine the required orbital radius in meters. b) What must...

this thread was an accident, if anyone knows how to delete it, please feel free.

no worries Condensate =P.. and ok i will try that when it comes around to AP review time, thanks for your help.

ok that is what i was hoping to hear, thanks a lot guys. torque is confusing but once you get the center of mass stuff down its ok,,,

Two masses hang from a meterstick whose fulcrum is at 50.0cm. M1=.100kg acts at 20.0 cm, what value of mass m2 at position 70.0 puts the the system at equilibrium? (.3m*(.1kg*9.8m/s2))=(.2m*(9.8m/s2*x kg)) .294 N*m=.2m(9.8*x N) 1.47 N=9.8*x N x=.15 kg Is this procedure correct...

Does anybody else know how to solve this, I am really curious what the correct procedure is...

Yeah when you think about them that way it makes it a lot easier. Once I started to do a lot of these problems it becomes pretty easy

Great thanks guys, I got it now. My teacher made it pretty confusing. I appreciate the help.

Yes AsH3 is pyramidal, as the lone pair wants as much space as it can get, and the largest angle it could have from the other atoms would be on top of the molecule. leaving the other hydrogen atoms in a trigonal pyramidal shape...

Homework Statement What mass of iron(III) chlorate is needed to precipitate all the chromate ions from 234 mL of a 0.100 M lithium chromate solution. Homework Equations The Attempt at a Solution we just started precipitates and my teacher didnt explain the procedure very well...