Se deja caer un kilogramo de plumas y un kilogramo de piedra de un edificio en la Tierra. ¿Qué objeto golpeará el suelo primero?

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

An object resting on a table weighs 100 n. with what force is the object pushing on the table? with what force is the table pushing on the object? explain how you got your answer.