When skeletal muscles are not stressed regularly (maybe due…

When skeletal muscles are not stressed regularly (maybe due to a cast placed on a limb to repair a broken bone), they will decrease in size and force-generating capacity due to down-regulation of thick and thin myofilaments.  This process is technically referred to as:  Type the best answer into the text box below:

Opposite faces of a rectangular aluminum bar measuring 2mm x…

Opposite faces of a rectangular aluminum bar measuring 2mm x 4mm x 5mm along its dimensions are connected to a circuit. What is the smallest resistance this bar can provide to the circuit? The resistivity of aluminum is 2.75 x 10–8 Ωm and it has 1.8×1028 conductive electrons/m3.

A current loop (not shown below) is oriented so that it lies…

A current loop (not shown below) is oriented so that it lies in the xz plane and carries a clockwise current when viewed from above (clockwise about the y axis). The current loop is placed and held with its center at each of the locations P shown below. In which of the following pictures will the loop experience a counterclockwise rotation about the z axis when released, due to the torque on it by an external magnetic field?