A 12 V battery is connected to a circuit with a 4 resistor. What is the current through the resistor? О ЗА
8A
16 A
O 48 A

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 do you think car designers do if the damage caused by a crash test is too severe?

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?