A particle moves in the potential energy region given by U=8x2 -4x + 400 J .its state of equilibrium will be. I need answer with proper steps pls

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering

Agas expands from an initial volume of 0.040 m^3 and an initial pressure of 210 kpa to a final volume of 0.065 m^3 while its temperature is kept constant. how much work is done by the system?

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87