The only force acting on a 1.2 kg body as it moves along the positive x axis has an x component F,- -4x N, where x is in meters. The velocity of the body at x = 1.7 m is 8.1 m/s. (a) What is the velocity of the body at x = 4.1 m? (b) At what positive value of x will the body have a velocity of 3.1 m/s? (a) Number (b) Number Units Units

A vector has a magnitude of 25 and points in a direction that is 35° above the positive x axis.

The components of vector  are  = -3.5 and  = -4.7, and the components of vector  are  = -6 and  = +8.1. What is the angle (less than 180 degrees) between vectors  and

Bour In figure (a) vector v shows the direction of a (+) positive charge moving with velocity v. The direction of the magnetic field B is also shown. What is the direction of the magnetic force (F) on the moving charge? In figure (b) vector v shows the direction of a (-) negative charge moving with velocity v. The direction of the magnetic field B is also shown. What is the direction of the magnetic force (F) on the moving charge? (a) (b) In figure (c) vector v shows the direction of a (+) positive charge moving with velocity v. The direction of the magnetic field B is also shown. What is the direction of the magnetic force (F) on the moving charge? x Ba B In figure (d) vector v shows the direction of a (-) negative charge moving with velocity v. The direction of the magnetic field B is also shown. What is the direction of the magnetic force (F) on the moving charge? In figure (e) vector v shows the direction of a (+) positive charge moving with velocity v. The direction of the…