A body moves with it position varying as R vector =(4t2−16t)i^ +3t^2 j^ meters. What is the y component of its velocity when the x component is zero Find also the position vector of the body at this instant.

Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th