Which is true energy cant be created but can disappear into nowhere or energy is able to be transferred from one into another or all moving objects including atoms have potential energy or an arrow stretched back on a bow is an example of kinetic energy

Aforce of 9.00 newtons acts at an angle of 19.0 to the horizontal. what is its component in the horizontal direction?

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?

The slope of a velocity time graph over any interval of time gives the during that interval