Un cuadrado homogeneo delgado de masa m y lado a estã¡ soldado a una flecha vertical ab con la cual forna un ã¡ngulo de 45â¤. si la flecha gira con una velocidad angular w, determine la cantidad de movimiento

In English:

A thin homogenous square of mass m and side a is welded to a vertical arrow ab with which it forms an angle of 45¤. if the arrow rotates with an angular velocity w, determine the amount of movement

i would say "están" :

when the outside temperature is too cold, an endothermic animal can generate heat by shivering. endothermic animals must eat much more often than ectothermic animals since it takes energy to maintain a constant body temperature.