math (vectors) & physics
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math (vectors) & physics
Posted by sam on Wednesday, March 28, 2007 at 7:32pm. In unitvector notation, what is the net torque about the origin on a flea located at coordinates (2.0, 4.0 m, 1.0 m) when forces F1 = (4.0 N) k and F2 = (5.0 N) j act on
asked by sam on March 29, 2007 
physics
A plum is located at coordinates (4.0 m, 0.0 m, 6.0 m). In unitvector notation, what is the torque about the origin on the plum due to force F whose only component is indicated by each of the following equations? (a) Fx = 8.0 N
asked by Joey on January 5, 2011 
Physics
In unitvector notation, what is the torque about the origin on a particle located at coordinates (0, 2.24 m, 9.78 m) due to (a) force 1 with components F1x = 2.70 N and F1y = F1z = 0, and (b) force 2 with components F2x = 0, F2y
asked by Anonymous on March 3, 2013 
Physics
In unitvector notation, what is the torque about the origin on a particle located at coordinates (0, 4.90 m, 4.04 m) due to (a) force 1 with components F1x = 2.67 N and F1y = F1z = 0, and (b) force 2 with components F2x = 0, F2y
asked by Em on November 17, 2011 
Math (Combinatorics)
In the plane, the points with integer coordinates are called lattice points. Suppose a flea in the plane jumps from one lattice point to another. Each jump is one unit to the right, one unit to the left, one unit up, or one unit
asked by Bob on April 29, 2013 
Math (Combinatorics)
In the plane, the points with integer coordinates are called lattice points. Suppose a flea in the plane jumps from one lattice point to another. Each jump is one unit to the right, one unit to the left, one unit up, or one unit
asked by Hale on May 1, 2013 
physics 2
A proton is located at the origin of a rectilinear coordinate system. An electron is at x=4pm, y=3pm. What is the force on the proton. Give your answer in unit vector notation.
asked by Martha on January 18, 2010 
Physics
A particle is in uniform circular motion about the origin of an xy coordinate system, moving clockwise with a period of 3.50 s. At one instant, its position vector (from the origin) is r = (8.00 m) ihat  (7.00 m) jhat. At that
asked by Britney on February 4, 2010 
Physics
An electron's position is given by r = 2.00t i  7.00t2 j + 5.00 k, with t in seconds and r in meters. (a) In unitvector notation, what is the electron's velocity v(t)? (Answer in terms of i, j, k, and t.) (b) What is v in
asked by Ryan on September 13, 2009 
Physics  Torque
A particle is acted on by two torques about the origin: T1 has a magnitude of 4.3 N*m and is directed in the positive direction of the x axis, and T2 has a magnitude of 3.2 N*m and is directed in the negative direction of the y
asked by COFFEE on March 31, 2007