30. Un proyectil de artillería se dispara con una velocidad inicial de 300 m/s a 55.0" arriba de la horizontal. Para
evitar una avalancha explota sobre el costado de una
montaña 42.0 s después del disparo. ¿Cuáles son las
coordenadas xy y del proyectil donde explota relativas
a su punto de disparo?​

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Aparticle initially located at the origin has an acceleration of = 2.00ĵ m/s2 and an initial velocity of i = 8.00î m/s. find (a) the vector position of the particle at any time t (where t is measured in seconds), (b) the velocity of the particle at any time t, (c) the position of the particle at t = 7.00 s, and (d) the speed of the particle at t = 7.00

What system does a dentist chair system use? pneumatic or hydraulic system?