Which of the following represents an image that is located in front of a lens?
a. -do. b. +do c. +di d.-di

Write a question about how changing temperature affects the gas inside the sports ball

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?

Positrons are spontaneously emitted from the nuclei of