Use first-order perturbation theory to calculate the first-order correction to the ground state energy of a quartic oscillator whose potential energy is V(x) = cx^4

In this case, use a harmonic oscillator as the unperturbed system. What is the perturbing potential?

Under conditions for which the same room temperature is maintained by a heating or cooling system, it is not uncommon for a person to feel chilled in the winter but comfortable in the summer. provide a plausible explanation for this situation (with supporting calculations) by considering a room whose air temperature is maintained at 20â°c throughout the year, while the walls of the room are nominally at 27â°c and 14â°c in the summer and winter, respectively. the exposed surface of a person in the room may be assumed to be at a temperature of 32â°c throughout the year and to have an emissivity of 0.90. the coefficient associated with heat transfer by natural convection between the person and the room air is approximately 2 w/m2 â‹…â‹… k. what is the ratio of the thermal resistance due to convection to the thermal resistance due to radiation in the summer? what is the ratio of thermal resistances in the winter

In physics the desire of an object to keep doing what it is doing is termed?

Who was the first scientist to measure speed as distance over time?