Center of mass problem

I've tried this one 3 times, and couldn't get the correct answer no matter what I tried, help! (a) How far is the center of mass of the Earth-Moon system from the center of the Earth? (Appendix C gives the masses of the Earth and the Moon and the distance between the two.) (b) Express the answer to (a) as a fraction of the E ...continues

Finding work using time dependent Force function.

I only need the last five parts explained to me. See attached PDF file for the question ! Homework 5-1 Due date: Mon 22 Mar 2004 09:00:00 AM MST 18 point(s) Pulling Out Tree Stump You are in a truck trying to pull out a tree stump. The mass of the tree stump m is 170.0 kg. You have attached the winch at the f ...continues

physics coriolis accel.

Please see attachments. In solving use coriolis accel concept and i j k vector coordinates. Ans. w bd = 3.82 rad/sec curving down left (clock wise); V p/bd = 6.06 m/sec. @10.49 deg.

coriolis accel physics

Please see attachments. Use coriolis accel. concepts and i, j, k vector coordinates in solving. Ans.37.5 rads/sec.^2 clockwise;7.07 m/sec^2 @ 45 deg.

physics coriolis accel.

Please see attachments. Use coriolis accel. concepts and i j k vector coordinates to solve. Thanks

physics motion @ fixed point

Please see attachments. Please use i j k vector coordinates to solve. ans. a)(.6i-2j+.75k)rads/sec. b) (20i +15j +24k)in/sec.

Physics . general motion.

Please see attachments Please use i j k vector coordinates in solving if possible.

General Motion

please see attachments Please use i j k vector coordinates to solve Ans. a)(-.1745i-.524j)rads/sec. b)-.0914k rad/sec^2. c)vp=(-5.44i+1.814j-1.047k)ft./sec. ap= (1.097i -.1828j -3.17k)ft./sec^2

Work and Energy

I just need to know how to set this up.

Direction of Cosines

Okay I have been racking my brain with this one for over a week and still have no clue how to do this.I need to study this for a test I am having and can't seem to figure this out Consider an arbitrary 3D vector: A=Axx+Ayy+Azz a) Determine the direction cosines for this vector. These are cos[], cos[] and ...continues