A t-shirt cannon is fired into a crowded field at an angle of 38˚. If it is caught by a fan at the same height the shirt as launched 51 m away, then a) What was the launch speed? And b) how long was it in the air?

An object has a weight of 500 on earth what is the mass of this object

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?

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt