Al enfriar una placa cuadrada metálica de 8 cm de longitud su lado disminuye un 0.03%
¿cuánto disminuirá porcentualmente su área?

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

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

How do you tell if someone actually cares about you? and just say they do?