Which the following is FALSE regarding transverse waves Select all that apply ) a) parts include crests and troughs

b) the medium moves PERPENDICULAR to the direction of the wave

c) water wave is an example of this type of

d) the medium moves PARALLEL to the direction of the wave

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?

Could someone . i have tried to solve myself but my calculation is off

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