Consider a system initially in a situation of
(, ) ,-1(0, 0) + yio(0, 0) + 11(0, p).
a) find the value .
b) if n is measured, which values are obtained with which probability.
c) if lz = ℏ is obtained from the measurement of n , calculate the uncertainties of ∆lx, ∆ly, and their product ∆lxx ∆ly.

Which system of units is used by only a small number of countries in the world, including the u. s.

During cooling, the kinetic energy of the molecules falls. why does this happen? a. the motion of the molecules increases. b. the motion of the molecules slows down. c. the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.

A980-kg sports car collides into the rear end of a 2300-kg suv stopped at a red light. the bumpers lock, the brakes are locked, and the two cars skid forward 2.6m before stopping. the police officer, estimating the coefficient of kinetic friction between tires and road to be 0.80, calculates the speed of the sports car at impact. what was that speed?