Consider a spin-1/2 particle with a magnetic moment. At time t = 0, the state of the particle is 0c1t = 029 = 0 +9n with the direction nn = 1n x + yn2 > 12. The system is allowed to evolve in a uniform magnetic field B = B0zn. What is the probability that the particle will be measured to have spin up in the y-direction after a time t?

Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.

On your wedding day your lover gives you a gold ring of mass 3.67 g. 48 years later its mass is 3.44 g. on the average how many atoms were abrated from the ring during each second of your marriage? the atomic mass of gold is 197 u. don't enter units

Atruck travels at an average speed of 70 km/hr. if it travels 100 km in the first hour, how far will it go the second hour of a 2 hour trip? if you could also give me the steps that would great.