a torsion pendulum is made using a steel wire of radius 0.25mm and a sphere of diameter 3cm. The rigidity modulus of steel is 80GPa and density of the material of the sphere is 11300kg/m^3. If the period of oscillation is 2 sceonds, find the length of the wire​

An uncharged nonconductive hollow sphere of radius 18.0 cm surrounds a 12.0 µc charge located at the origin of a cartesian coordinate system. a drill with a radius of 1.00 mm is aligned along the z axis, and a hole is drilled in the sphere. calculate the electric flux through the hole.

What is the length x of the side of the triangle below? (hint: use the cosine function)

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?