A89 kg bobsled is pushed along a horizontal surface by two athletes. after the bobsled is pushed a distance of 3.8 m starting from rest, its speed is 12.5 m/s. what is the magnitude of the net force (in newtons) acting on the bobsled?

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.

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

What are the three ways that an object can accelerate