Estás asomado a la ventana de tu casa y observas que pasa por delante de tí una pelota que han tirado tus amigos desde arriba. Si la diferencia de altura entre ambos pisos es de 3 m,

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

This energy transformation diagram represents the energy of a skateboarder moving along a half-pipe. as she skates toward the top of the half-pipe, her original kinetic energy is converted to potential energy and friction. how much of the energy is potential?