Aforce of 38.7 n is applied to the master cylinder of a hydraulic brake system. the cylinder has an area of 7.61 cm^2. the force from the master cylinder is transferred, by brake fluid, to two brake cylinders that have a total area of 49.1 cm^2. how much total force is exerted by the brake cylinders?

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Explain why electric current cannot exist if a current doesn't have a voltage source.

Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?