A 40kg box of junk food is being pushed along a wooden floor with a force of 100N. If the coefficient of friction is 0.2, what will be the acceleration of the box? Remember to show the equation you are using, then substitutions, then final answer.

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?

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

Explain why electric current cannot exist if a current doesn't have a voltage source.