A sample garden syringe used to produce a jet of water consists of a piston of area 4cm’ which moves in a horizontal cylinder which
has a small hole of area 4mm’ at its end. If the force on the piston
is 50N calculate a value for the speed at which the water is forced
out of the small hole, assuming the speed of the piston is
negligible. The density of water is 1000kgm.​

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

If you place a magnet under a clear dish, and sprinkle iron fillings over it, above what part of the magnet will most of the fillings gather

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader