The position vector for a particle moving on a helix is c(t)=(2cost,2sint, t2)c(t)=(2cost,2sint, t2). find the speed s(t0)s(t0) of the particle and parametrization for the tangent line at time t0=πt0=π. where will this line intersect the xyxy plane? use the equation of the tangent line such that the point of tangency occurrs when t=t0t=t0 (this is the version given in the e-book between examples 7 and 8 in section 12.1). (use symbolic notation and fractions where needed. ) s(t0)s(t0) = . (use tt for the parameter that takes all real values. simplify all trig expressions by evaluating them.) l(t)l(t) = ,

Disney, viacom and aol time warner are examples of

A250-n box is at rest on a frictionless horizotal floor. then a person shoves the box with a non-zero force of magnitude p. which statement best describes the relationship betweeen p and the motion of the box after it was shoved? -the box will not move when p< 250n but otherwise will accelerate at a constant rate that is directly proportional to p - the box will begin moving at a speed that is directly proportional to p, then will gradually slow to a halt -the box will move with constant velocity at a speed that is directly proportional to p -box will accelerate across the floor at a constant rate that is directly proportional to p

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603