khanster

Consider two particles following the two planar paths:

r_1(t) = <sin(2t), cos(t)>

r_2(t) = <sin(t), cos(2t)>

Notice r_1(0) = <0,1> = r_2(t), so they start at the same point

A. At how many points in the plane do their paths cross? make a rough sketch showing intersections.

B. Find the first positive time of a collision

C. At the collision time, use velocity vectors to describe the type of collision.

Find surface integral of double integral is S f*Ds where F(x,y,z) =<x,y,z> and S is the surface z=4-x^2-y^2, z>=0. Use x=ucos(v) and y =using(v) to parametrize S

A charged particle enters a uniform magnetic field with velocity that is not perpendicular to the direction of the magnetic field. Find its path of motion in parametric form (with parameter t = time). Assume that the speed of the particle is much smaller that the speed of light. the forces acting on the particle by the magnetic field is F = qv x B, where v = v_x(i) + v_y(j) +v_k(k) is the velocity of the charge in m/s at any instant, q is the charge in Coulomb, and B is the magnetic field in Tesla.

i have to get it done today so i need one thats cheap and doesnt charge a lot of money. it also has to close at or after 7:00.

for Minnesota?

for biology class------can't remember i frgt.......2 lazy 2 look it up

jk

it has to have lyrics about how the revolution was like