--actually they are used in real life. parabolas are seen in "parabolic microphones" or satellites. and there are others for both ellipses and hyperbolas.
Parabolas are used in real life in light reflectors on cars to create a concentrated beam of intense light. Braking distance and stopping distance are quadratic formulas so their graphs are parabolas. A ball in motion in space has a path of a parabola.
yes
NO. They do not oscillate.
tennis racket and tennis ball
Hyperbolic cosines, parabolas, semicircles, triangles are some shapes.
They are used for math and science. They are used in flashlights, solar cooking, throwing or kicking a ball, suspension bridges, and diving.
to play tennis
tennis racquet
hyperbolas have an eccentricity (fixed point to fixed line ratio) that is greater than 1, while the parabolas have an exact eccentricity that is equal to 1. And hyperbolas are always come in pairs while parabolas are not.
The Lobster tennis ball machines are used by professional tennis players for practising their tennis skills. These machines sweep the tennis balls to the left or right and are used during physical workouts by the tennis players.
Slazenger tennis balls are used at Wimbledon.