A single force acts on a particle situated on the positive x-axis. The torque about the origin is in the negative z-direction. The force might be?
A) in the positive y-direction B) in the negative y-direction
C) in the positive z-direction D) in the negative x-direction

Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics

Ascientist notices that an oil slick floating on water when viewed from above has many different colors reflecting off the surface, making it look rainbow-like (an effect known as iridescence). she aims a spectrometer at a particular spot and measures the wavelength to be 750 nm (in air). the index of refraction of water is 1.3

Define the terms moral development and moral reasoning