Two 2.0 kg bodies, a and b, collide. the velocities before the collision are ~va = (15ˆi + 30ˆj) m/s and ~vb = (−10ˆi + 5.0ˆj) m/s. after the collision, ~va = (−5.0ˆi + 20ˆj) m/s. what are (a) the final velocity of b and (b) the change in the total kinetic energy (including sign)?

What color of light must blue light mix with to create white light? a. yellow b. white c. blue d. green

In the derivation of rrkm theory, a factor of 1/2 is introduced when equalizing the rates of formation and decomposition of activated complex as keal-hr) = ko this is clearly against the assumption of transition state theory that states all the activated complex in the transition state iss going to the product. find the reason why this factor is introduced here.

At time t=0, a particle is located at the point (3,6,9). it travels in a straight line to the point (5,2,7), has speed 8 at (3,6,9) and constant acceleration 2i−4j−2k. find an equation for the position vector of the particle.