How many chins does danisnotonfire have?

A uniform rod of length L rests on a frictionless horizontal surface. The rod pivots about a fixed frictionless axis at one end. The rod is initially at rest.

A nuetral atom has no overall charge. Explain this in terms of its particles.

A uniform disk of mass M and radius R has rotational inertia about its central axis of Idisk = 1/2 MR2. A uniform rod of mass m and length R has rotational inertia about its center, perpendicular to its length of Irod = 1/12 mR2.

How big would the crater be if an asteriod the size of a quarter hit the earth at 15000 MPH?

Why does liquid helium form a gas when exposed to room temperature?

A force between two objects?

Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch.

Which part of the motor is responsible for reversing the flow of current?

In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what? A) revolutions per minute B) direct current C) alternating current.

A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How long did it take the train to complete its journey?