Compute the electrical conductivity ((ωm)−1 ) of a cylindrical silicon specimen 5.1 mm in diameter and 51 mm in length in which a current of 0.1 a passes in an axial direction. a voltage of 12.5 v is measured across two probes that are separated by 38 mm.

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

What object a collides with object b and bounces back its final momentum is?

You are given two vectors a⃗ =−3.00ι^ 5.00j^ and b⃗ =5.00ι^ 2.00j^. let the counterclockwise angles be positive.