From a window that is 20 m from the ground a stone with a speed of 10m / s is thrown vertically upwards. calculate: a) the maximum height reached and the time it takes to reach it b) the total time that is in the air

Which is not a source of noise pollution? a)airplanes b)acid rain c)machines d)cars

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.

What does si stand for, when referring to a system of measurement