Las pantallas de los controladores de tráfico aéreo, que utilizan radares, despliegan las aeronaves en coordenadas polares. Un avión que pasa, es detectado a 285° en
opuesta a las agujas del reloj desde el norte a una distancia de 5 km desde el radar, luego
30 segundos más tarde es detectada a 225º y 3 km. Calcula la velocidad del avión en km/h.​

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Which best represents the law of conservation of mass ?