Moving up along the inclined road, the wind creates a drag resistance on the car of FD=1.3v2, where FD is the drag force in N and v is the velocity in m/s. The drag force acts in the opposite direction of the car’s velocity. The car acceleration is 5 m/s2 starting from rest. Find the engine's input power when t=4s.

Will a heavier bowling ball hit pins better than a lighter bsll

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?