An electron has an initial velocity v_0 vector = (7.5 times 10^4 m/s)i cap. It enters a region where E vector = (2.0 I vector +8.0 j vector) times 10^4 N/C. Determine the vector acceleration of the electron as a function of time. m/s^2 i vector m/s^2 j vector At what angle theta is it moving (relative to its initial direction) at torque = 1.4 ns? degree (counterclockwise from its initial direction is positive)

•• al and bert are jogging side-by-side on a trail in the woods at a speed of 0.75 m/s. suddenly al sees the end of the trail 35 m ahead and decides to speed up to reach it. he accelerates at a constant rate of 0.50 m/s2, while bert continues on at a constant speed. (a) how long does it take al to reach the end of the trail? (b) once he reaches the end of the trail, he immediately turns around and heads back along the trail with a constant speed of 0.85 m/s. how long does it take him to meet up with bert? (c) how far are they from the end of the trail when they meet?

Scientific models are based on current knowledge, which can limit their effectiveness when new discoveries are made.

Which describes increasing the efficiency of energy resource