Apulley 12 cm in diameter is free to rotate about a horizontal axle. a 220-g mass and a 470-g mass are tied to either end of a massless string, and the string is hung over the pulley. assuming the string doesn’t slip, what torque must be applied to keep the pulley?

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

The speed of sound in ice, water, and steam is shown. what best explains the speed of sound in different states of matter? sound travels fastest in ice because energy is easier to transfer when the molecules are close together. sound travels slowest in steam because the sound has to move around the gas molecules that are far apart. sound travels fastest in ice because the temperature of solids is always greater, so the heat transfers the sound energy. sound travels slowest in steam because the pressure is so great the sound cannot travel though the steam particles.

Ihave a density of 1.61g/cm^3 and a mass of 28g. find the missing value