Astring is wrapped around a uniform disk of mass m = 1.2kg and radius r = 0.11m. attached to the disk are four low-mass rods of radius b = 0.14m, each with a small mass m = 0.4kg at the end. the device is initially in rest on a nearly frictionless surface. they you pull the string with a constant force f = 21n for a time of 0.2s. now what is the angular speed of the apparatus?

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.

An object weigh 40n in air ,weigh 20n when submerged in water,and 30n when submerged in a liquid of unknown liquid density.what is the density of unknown of liquid?

Name the non metal condut electricity