Where would a new neuron come from

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?