Asolid circular disk has a mass of 1.2 kg and a radius of 0.16m. each of three identical thin rods has a mass of 0.16kg. the rods are attached perpendicularly to the plane of the disk at its outer edge to form a three-legged stool (see the drawing). find the moment of inertia of the stool with respect to an axis that is perpendicular to the plane of the disk at its center. (hint: when considering the moment of inertia of each rod, note that all of the mass of each rod is located at the same perpendicular distance from the axis.

0.027648 kgm²

Explanation:

M = Mass of disc = 1.2 kg

r = Radius of disc = 0.16 m

m = Mass of rod = 0.16 kg

R = Rod distance = 0.16 m

Moment of inertia of disk is given by

Moment of inertia of the three rods

The total moment of inertia is given by

The moment of inertia of the stool with respect to an axis that is perpendicular to the plane of the disk at its center is 0.027648 kgm²

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

here are some information of the future of geothermal energy:

-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

-we are hoping that one day, we will get all of our energy from renewable energy sources such as geothermal energy

hope this !