Un bloque de 800 g se conecta a un resorte ligero. El cual tiene una constante de 4 N/m. Si el bloque se desplaza 4cm desde la posicion de equilibrio partiendo del reposo; cual es la frecuencia de una oscilacion y cual es el periodo?

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

The necleus of an atom is made up of what subatomic particles?

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.