A hydraulic brake system is shown below. The area of the piston in the master cylinder is 6.40 cm2, and the area of the piston in the brake cylinder is 1.75 cm2. The
coefficient of friction between the brake shoe and wheel drum is 0.50. What is the
frictional force between the brake shoe and wheel drum when a force of 44 N is
exerted on the pedal?

Fb, brake force, is the normal force exerted on the brake shoe

11. you want to calculate the displacement of an object thrown over a bridge. using -10 m/s2 for acceleration due to gravity, what would be the total displacement of the object if it took 8 seconds before hitting the water?

Abird sitting high in a tree is an example of what type of wnergy

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.