Acompound consisting of only phosphorous and oxygen atoms is 43.64 % phosphorus by mass. the molecular mass/formula weight of the compound is 283.88 amu. how many phosphorous atoms ar in a molecule of this compound? show all calc involved.

The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the displacement of a string particle and x is the position of the particle on the string. the wave is traveling in the +x direction. what is the speed v of the wave?

Which one of the following terms is used to indicate the natural tendency of an object to remain at rest or in motion at a constant speed along a straight line? velocity acceleration equilibrium force inertia

Holes drilled several kilometers into earth’s crust provide direct evidence about earth’s interior in the form of