A gas balloon absorbs 75 J of thermal energy. The balloon expands but stays at the same
temperature. How much work did the balloon do
in expanding?

The equations is u=Q-W

Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?

In a voltaic cell, electrons flow from the (positive/negative) to the (positive/negative) terminal.

Most of the volume of an atom is occupied by the