Plz quick I'll give brainlest Which one of the following is wrong statement? A. All materials can transmit sound.

B. The speed of sound in stone is slower than in wool.

C. Sound cannot move in vacuum.

D. Sound loses its energy as it travels.

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?

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

In a good thermo flask the main cause of heat loss is